Saccocoelium megasacculum n. sp., a new haploporid trematode from Liza carinatus in the Taiwan strait

Saccocoelium megasacculum n. sp. (Digenea: Haploporidae) was collected from the intestine of the mugilid fish. Liza carinatus (Cuvier and Valenciennes), in the Taiwan Strait. It is the first record of Saccocoelium in China. The parasite most closely resembles Saccocoelium obesum Looss, 1902 and Saccocoelium tensum Looss, 1902 in general morphology and body size, but it is easily distinguished from them in having a larger hermaphroditic sac in relation to body size; larger eggs; smaller pharynx, testis, ovary, and vitellaria; and a uterine seminal receptacle instead of a true seminal receptacle.     

New species and new genus of Pseudohaploporinae (Digenea): Pseudohaploporus pusitestis sp. n. and Parahaploporus elegantus n. g., sp. n. (Digenea: Pseudohaploporinae) from Vietnamese mullet fish

Two new species of Pseudohaploporinae, Pseudohaploporus pusitestis sp. n. and Parahaploporus elegantus n. g., sp. n., are described from intestines of the Vietnamese mullet fish Moolgarda seheli and Osteomugil cunnesius, respectively. Pseudohaploporus pusitestis sp. n. differs from two known Pseudohaploporus species, P. vietnamensis and P. planiliza, by the absence of a diverticulate hermaphroditic duct and muscular sphincters at the proximal end of the hermaphroditic sac. Metrically, P. pusitestis sp. n. is close to P. vietnamensis and differs from this species and from P. planilizum by lower maximum sizes of most parameters. Parahaploporus elegantus n. g., sp. differs from representatives of Pseudohaploporus by the presence of a single testis and the armament of hermaphroditic duct and is morphologically close to trematodes of the genus Haploporus. However, P. elegantus n. g differs from all known Haploporus species from mugilids of the Indo-West Pacific by the structure of the armament of the hermaphroditic duct and also by size of body, organs and eggs. The validity of designating two new species and a new genus of trematodes is supported by ITS and 28S rDNA sequence data. Phylogenetic reconstructions showed that the new trematodes belong to the Pseudohaploporinae, which formed a well-supported cluster within the monophyletic Haploporidae.     

Chabaudechina n. g. (Nematoda: Seuratidae), with the description of two new species from dasyurid marsupials from Australia

Chabaudechina presidentei n. g., n. sp. (Seuratidae: Echinonematinae) is described from Sminthopsis virginiae, S. macroura and S. youngsoni (Dasyuridae) from northern Australia. The new genus can be distinguished from all other genera of the Echinonematinae by the morphology and number of rows of cephalic hooks as well as the morphology and arrangement of body hooks and spines. The genus otherwise resembles the echinonematines in spicule morphology and arrangement of cloacal papillae. It resembles Inglechina and Linstowinema in having a triangular mouth opening, no lips and two pairs of double cephalic papillae. C. presidentei differs from C. haycocki n. sp. from Dasycercus cristicauda from central Australia in the number of caudal papillae, the proportions of the alae surrounding the cloaca and the posterior ventral cuticular spination of the male. Chabaudechina sp., found in Planigale spp., could not be identified to species level.     

Protospirura kaindiensis n. sp. (Spirura: Spiruridae) and other helminths from Pseudohydromys (Muridae: Hydromyinae) from Papua New Guinea

One cestode and 3 species of nematodes are recorded from Pseudohydromys murinus and Pseudohydromys occidentalis (Muridae: Hydromyinae), from Papua New Guinea, for the first time. Heterakis fieldingi (Ascaridida: Heterakidea) has previously been known from Australia. Odilia sp. resembles Odilia praeputialis in the orientation of the synlophe and the number and size of ridges but differs in the length of spicule and lack of a praepuce. Protospirura kaindiensis n. sp. (Spirurida: Spiruridae) is readily distinguished from all other members of the genus by the number and arrangement of caudal papillae and the length of the spicules.     

Description of Auriculotrema lechneri n. gen., n. sp. (Digenea: Choanocotylidae), a parasite of freshwater turtles (Testudines: Pleurodira: Chelidae) from Queensland,Australia

Auriculotrema lechneri n. gen., n. sp. is described from the small intestine of Emydura krefftii and Elseya latisternum from northern Queensland, Australia. The new species strongly resembles species of Choanocotyle in body shape, ventral incision of the oral sucker, structure of the cirrus sac, and location of the genital pore. The distinctive taxonomic feature is the presence of 2 winglike projections extending beyond the lateral margins of the oral sucker, in contrast to the extremely large, expanded oral sucker diagnostic of Choanocotyle spp. Auriculotrema n. gen. is the second genus included in the formerly monotypic Choanocotylidae Jue Sue and Platt, 1998.     

Durettechina beveridgei n. g., n. sp. (Nematoda: Seuratidae) from Antechinus spp. (Dasyuridae: Marsupialia) from Australia

Durettechina beveridgei n. g., n. sp. (Nematoda: Seuratidae) is described from Antechinus flavipes (Dasyuridae) from Victoria and New South Wales. A single female from A. bellus from the Northern Territory may also be D. beveridgei. This new genus is compared with other genera of the Echinonematinae, to which it has been assigned. The genus has a unique body armature and most closely resembles Chabaudechina, in the armature of the cephalic bulb, but has four rather than five rows of hooks, and Linstowinema, in having body hooks on the cuticle of the anterior region, but has 18–22 hooks in each row rather than 14–16. The hooks of Durettechina are also smaller and have a less complex root morphology than those of Linstowinema. Durettechina resembles Seurechina and Chabaudechina in having caudal alae into which papillae extend, but differs from both these genera in the number and arrangement of the caudal papillae, as well as in the body armature. Durettechina, is most different from Bainechina, which has neither hooks on a cephalic bulb nor body hooks on the anterior region nor caudal alae.     

Allopodocotyle chiliticorum n. sp. (Digenea: Opecoelidae) from redlip shiners, Notropis chiliticus, in Basin Creek, North Carolina

Allopodocotyle chiliticorum n. sp. is described from the intestines of redlip shiners (Notropis chiliticus) from Basin Creek, North Carolina. The new species is characterized by circumcecal vitelline fields that are not confluent in the post-testicular space, which distinguishes it from the 3 previously known species of this genus described from freshwater fishes. The new species is characterized further by an elongate vitelline reservoir lying dorsal to the ovary, an ovary as large or larger than the testes, and an excretory vesicle not reaching the posterior testis. A. chiliticorum n. sp. most closely resembles Allopodocotyle lepomis (Dobrovolny, 1939) in body shape, testes shape, and terminal genitalia but is distinguished further from this species by the extent of the intestinal ceca. The new species is the fourth species of Allopodocotyle known from freshwater fishes in North America.     

Wakubitinema toyamai n. gen. and n. sp. (Nematoda: Seuratoidea: Quimperiidae) from the intestine of Rana (Limnonectes) Namiyei (Amphibia: Ranidae) on Okinawa Island, Japan

Wakubitinema n. gen. (Nematoda: Seuratoidea: Quimperiidae: Quimperiinae) is erected for Wakubitinema toyamai n. sp. from the small intestine of Rana (Limnonectes) namiyei Stejneger, 1901, on Okinawa Island, Japan. Wakubitinema resembles Paraquimperia Baylis, 1934, and Desmognathinema Baker et al., 1987, but is readily distinguished from the former genus by the distinctly divided esophagus and the absence of cervical flanges and lateral alae, and from the latter genus by the postesophageal position of the excretory pore and cervical papillae and the presence of preanal unpaired papilla in males. Close morphological similarities between Wakubitinema and Paraquimperia may suggest that Wakubitinema has evolved from a quimperiid fish.     

Tasmanomysis oculata n.g. n.sp. from Tasmanian waters (Crustacea: Mysidacea: Mysini)

Tasmanomysis oculata n.g. n.sp. belonging to the Tribe Mysini is described from the coastal waters of southern Tasmania. This new genus superficially resembles the monospecific genus Arthromysis Colosi,1924 known only from the Straits of Magellan. The form of the pleopods in the male together with the segmentation of the thoracic legs and shape of the telson clearly distinguish the two genera.     

Deurithitrema gingae n.g., n.sp. (Digenea: Plagiorchioidea) from the kidneys of a salt-water crocodile (Crocodylus porosus Schneider) from Australia

Summary The name Deurithitrema gingae n. g., n. sp. is proposed for worms from the kidneys of one Crocodylus porosus from Darwin, Northern Territory, Australia. The following combination of characters distinguishes the new genus from all others: prepharynx very short; oesophagus absent; caeca reaching to posterior end of body; testes tandem in middle third of body, contiguous or amost so; cirrus-sac large, over-reaches ventral sucker, contains bipartite seminal vesicle, prostatic regions and ejaculatory duct with spines around its opening into genital atrium; genital pore immediately in front of ventral sucker; uterus coiled to posterior end of body; vitellaria lateral from ventral sucker to slightly behind testes; excretory vesicle small, receiving a single ventro-lateral duct from each side behind end of uterine loops. Deurithitrema belongs to the superfamily Plagiorchioidea Dollfus, 1930. It superficially resembles a number of genera, but its relationships within the superfamily are obscure.     

Ankistromeces mariae n. g., n. sp. (Digenea: Sanguinicolidae) from Meuschenia freycineti (Monacanthidae) off Tasmania

Ankistromeces mariae n. g., n. sp. is described from Meuschenia freycineti (Monacanthidae), the six-spined leatherjacket, from off northern Tasmania. The new genus differs from the 21 other sanguinicolid genera in the combination of the anteriorly intercaecal and posteriorly post-caecal single testis, the presence of a cirrus-sac, the absence of an auxiliary external seminal vesicle, separate genital pores, the typically post-ovarian uterus and the H-shaped intestine. A. mariae is the first sanguinicolid to be reported from a monacanthid fish.     

Dactylomyza gibsoni n. g., n. sp. (Digenea: Opecoelidae) from Schuettea woodwardi (Waite) (Monodactylidae) from off Western Australia

An opecoelid digenean, Dactylomyza gibsoni n. g., n. sp. is described and figured from Schuettea woodwardi (Waite), a monodactylid from off the coast of Western Australia. The new genus conforms to the concept of the opecoelid subfamily Opecoelinae. The resemblance of the new genus to three other opecoelid genera, Pseudopecoeloides Yamaguti, 1940, Opecoeloides Odhner, 1928 and Poracanthium Dollfus, 1948, is discussed. Dactylomyza n. g. is distinguished from these morphologically similar worms on the basis of its median genital pore, ventral sucker appendages, uroproct and the absence of an accessory sucker. Pseudopecoeloides equesi Manter, 1947 is transferred to the new genus as Dactylomyza equesi (Manter, 1947) n. comb.     

Scorpidotrema longistipes n. g., n. sp. (Digenea: Opecoelidae) from Scorpis georgiana (Teleostei: Scorpididae) from southern Western Australia

Scorpidotrema longistipes n. g., n. sp. is described from the intestine of Scorpis georgiana Valenciennes (Scorpididae) from off Point Peron, Western Australia. The new genus is distinguished by the combination of a remarkably long and retractable ventral sucker peduncle, a possible uroproct, well-developed cirrus-sac and a uterine seminal receptacle. The subfamilial relationships of the new genus are troublesome. It incorporates features of the Opecoelinae, Stenakrinae and Plagioporinae. The absence of a canalicular seminal receptacle suggests a relationship with the Opecoelinae and Stenakrinae, whereas the well-developed cirrus-sac suggests a relationship with the Plagioporinae and Stenakrinae. The overall arrangement of the gonads is not similar to that of existing genera of Stenakrinae. It is concluded that the genus is best placed in the Stenakrinae although that subfamily may now be an artificial assemblage. This new genus forms part of a distinctive fauna of trematodes restricted to Australian southern temperate fishes.     

Rugonema labiatum n. g., n. sp. (Nematoda: Strongyloidea) from the stomach of Macropus irma (Marsupialia: Macropodidae) from Western Australia

Rugonema labiatum n. g., n. sp. is described from the stomach of Macropus irma (Jourdan) from Western Australia. The new genus possesses four branches to the dorsal ray, has a cylindrical buccal capsule and lacks a cervical groove, placing it within the subfamily Cloacininae Stossich, 1899. The presence of a prominently striated buccal capsule and labial as well as cephalic collars places the genus within the tribe Pharyngostrongylinea Popova, 1952, but it is distinguished from all existing genera within the tribe by the possession of four lips. The presence of lips is an important characteristic of the related tribe Zoniolaiminea (Popova, 1952) and the characters used in distinguishing these two tribes are discussed.     

Australiformis semoni (Linstow, 1898) n. gen., n. comb. (Acanthocephala: Moniliformidae) from marsupials of Australia and New Guinea

Australiformis n. gen. is erected for Echinorhynchus (Gigantorhynchus) semoni Linstow, 1898, from Australian and New Guinea marsupials. The new genus differs from Moniliformis and Promoniliformis in lacking spiral muscles in the outer wall of the proboscis receptacle. Linstow's species, E. semoni, is redescribed from abundant material from Peramelidae and Dasyuridae from Australia and New Guinea.     

Macropodicoptes mironovi n. g., n. sp. (Acariformes: Sarcoptidae), a new mange mite from Wallabia bicolor (Desmarest) (Diprotodonia: Macropodidae)

A new mange mite species, Macropodicoptes mironovi n. g., n. sp. (Acariformes: Sarcoptidae), is described from Wallabia bicolor (Desmarest) (Diprotodontia: Macropodidae) from the Taronga Western Plains Zoo at Dubbo, NSW, Australia. This is the fourth species and third genus allocated to the sarcoptid subfamily Diabolicoptinae, whose representatives exclusively parasitise marsupials. The new genus differs from Diabolicoptes Fain & Domrow, 1974, in both sexes, by the proportions of the gnathosoma, the shape of many hysterosomal setae and the absence of setae e1, pRII-II, sRIII and solenidion ω3I; and, in males, by the lack of fusion of coxal apodemes I.     

Coganomyia ornata sp. n. (Diptera: Calliphoridae): a spectacular new fly from Angola

Abstract. Coganomyia ornata gen. et sp.n. is described from Angola, and a possible second species from Uganda is reported. This genus resembles Auchmeromyia (Calliphoridae) in the presence of long, curved and fused male cerci, although there are five rather than four visible abdominal tergites.     

Strzeleckia major n. g., n. sp. and S. minor n. sp. (Digenea: Hasstilesiidae) from Antechinus swainsonii (Marsupialia: Dasyuridae) in Australia

Strzeleckia major n. g., n. sp. and S. minor n. sp. are described from the dusky antechinus Antechinus swainsonii (Marsupialia: Dasyuridae) from the Kosciusko National Park in southern New South Wales, Australia. The two species were found together in the same individual host animals but occupy different sites in the intestine. The new genus is placed within the Hasstilesiidae, where it differs from the only other genus, Hasstilesia, by being more elongate and in having larger suckers, tandem testes, the ovary between rather than opposite the testes, and in having the caeca not reaching the posterior end of the body. It is suggested that the life-cycles of these species are similar to those of other hasstilesiids. Pupillid snails may act as sole intermediate hosts.     

Microphallidae Travassos, 1920 (Trematoda). L. Testiculoporus cedarkeyensis n. g., n. sp. et Endocotyle bushi n. sp., parasites d'un Catoptrophorus (Aves) des Etats-Unis

The authors describe and illustrate three different species of microphallid trematodes parasitic in the intestine of an American willet Catoptrophorus semipalmatus (Aves). Testiculoporus cedarkeyensis n. g., n. sp. has morphological characters related to Odhneria and Pseudospelotrema, along with a genital pore drawn back to the level of the sinistral testis. Two species of Odhneria (minuta Ke, 1979 and papilloprocera Ke, 1980), which appear aberrant because of the atypical posterior position of their genital pore, are transferred to the new genus. Endocotyle bushi n. sp. differs from the two other species in the genus by the disposition of the posterior uterine loops, the extension of the vitellarium, egg size and geographical distribution. The evaginated cirrus of Odhneria odhneri is described.