The genus Uromunna (Crustacea: Isopoda: Munnidae) in New South Wales,Australia, with a key for all known species

The invertebrate collection of the Australian Museum revealed the existence of three new species of the genus Uromunna (family Munnidae) from New South Wales, Australia. Uromunna tenagoika sp. nov. from Batemans Bay has the head anterior margin concave, without simple setae; eyes with few ommatidia, eye lobes with both margins parallel, in male posterior margin directed forward; pereonite 7 as wide as pereonite 6, subequal to pleotelson width; pleotelson distal margin pointed, suburopodal shelf present; mandible palp absent; pereopod I propodus robust setae absent; pereopods relatively short; pleopod IV exopod distal tip with one pappose seta. Uromunna rhamnda sp. nov. from Batemans Bay has a head anterior margin concave, without simple setae; eye lobes with both margins parallel, in male posterior margin parallel to frontal margin; pleotelson distal margin pointed, suburopodal shelf absent; mandible palp present; pereopod I propodus robust setae absent; pleopod IV exopod distal tip with one pappose seta. Uromunna eora sp. nov. was found at Southern Creek, located north of Sydney and is the first species of the genus described from a fully freshwater environment with no marine water input. It has a relatively elongate body (length 3.4× width), anterior margin concave, eye lobes with both margins converging distally, in male posterior margin directed forward; pereonite 7 as wide as pereonite 6, wider than pleotelson width; pleotelson distal margin truncate, suburopodal shelf present; mandible palp present; pereopod I propodus robust setae present; pleopod IV exopod distal tip with two pappose setae. This work raises the number of Uromunna species found in Australia to a total of six.

http://zoobank.org/urn:lsid:zoobank.org:pub:D877FC47-BC6E-4827-BA89-3A75AFDE1124     

A new species of Paratanais Dana, 1852 (Crustacea,Peracarida, Tanaidacea,Paratanaidae) from Puerto Rico,northwestern Atlantic

Paratanais rosadi sp. n. described from Puerto Rican coastal waters represents the first species of the genus from the northwestern Atlantic. It is distinguished from the other Paratanais species by a combination of characters, including article-2 of the maxilliped palp with a geniculate, finely-serrulate seta on inner margin; chela with stiff, geniculate, seta arising from propodus between fixed finger and dactylus and with short, stout, finely serrulate, seta on inner distal face of propodus adjacent to base of dactylus; carpus of pereopods 4−6 having three, instead of four stout modified spiniform setae distally, uropodal exopod distinctly shorter than endopodal article-1; and uropodal endopod with articles of about of equal in length. A key for the separation of Paratanais species from the Atlantic Ocean is presented.     

New hyalellids (Crustacea, Amphipoda, Hyalellidae) from Lake Titicaca

Two new species of hyalellid amphipods, Hyalella crawfordi and H. gauthieri, are described from Lake Titicaca; H. echinus (Faxon, 1876) is redescribed. The H. echinus group of species is newly proposed for these three species, and a group diagnosis is provided. A key to the three species in the group is provided Full article published online at http://www.senckenberg.de/odes/06-10.htm.     

Setal morphology of grooming appendages in the spider crab,Libinia dubia

In crustaceans, grooming behaviors decrease fouling by removing debris from the exoskeleton and body structures; these grooming behaviors improve respiration, sensory reception, movement, and reproduction. Setal morphologies of the following grooming appendages in the decapod crustacean spider crab Libinia dubia are examined including the first pereiopod (cheliped), first, second, and third maxillipeds (mouthparts), and first, second, and third epipods (internal extensions of the maxillipeds). The objective of this study was to describe setal morphologies of these grooming appendages and to elucidate possible functions and efficiencies of setal structures. Spider crabs are hypothesized to have elaborate setal morphologies, mainly for cleaning specialized decorating setae as well as for cleaning inside the gill chamber, which has a higher likelihood of becoming fouled compared to other decapods such as shrimps. Fourteen setal types are documented and included several varieties of serrate and pappose setae as well as simple setae, cuspidate setae, papposerrate setae, and canoe setae. Maxillipodal epipods in the gill chamber are free of fouling, suggesting the setation on the third maxilliped protopod has an efficient functional morphology in removing debris before water enters the gill chamber. Serrate setae may function for detangling and separating structures whereas pappose setae may function for fine detailed grooming. The cheliped is the only grooming appendage that can reach decorating setae and it contains only pappose setae; thus decorating setae is not likely groomed in a manner that would greatly decrease fouling. J. Morphol. 277:1045–1061, 2016. © 2016 Wiley Periodicals, Inc.     

Behavioral and morphological aspects of decorating in Oregonia gracilis (Brachyura: Majoidea)

Abstract. Decorator crabs (Brachyura: Majoidea) are known for attaching sessile organisms to specialized velcro-like hooked setae. Here we describe behavioral and morphological aspects of decorating for a common northern Pacific majoid, Oregonia gracilis . Members of O. gracilis decorate with a diverse array of sessile organisms. These are attached to hooked setae, and also physically interact with long, pappose setae that occur in the same body regions as hooked setae. We describe these pappose setae and document the occurrence of similar setae in 36 other decorating majoids across seven families. In O. gracilis , the density of pappose and hooked setae independently covary with decoration amount, which is sexually dimorphic—juveniles and adult females decorate heavily, whereas adult males decorate sparsely. Adult males have reduced numbers of hooked and pappose setae, but the ontogenetic patterns for the two setal types are different, suggesting that they are quasi-independent characters. We experimentally ablated pappose setae to ask if they functionally contribute to decorating in O. gracilis . Surprisingly, we found that pappose setae are not necessary for decorating under laboratory conditions. Pappose setae could play an auxiliary mechanical role or a sensory role in decorating, or may have another as-yet-unidentified function distinct from decorating.     

云南西双版纳蓟马三新种记述

本文记述在我国云南西双版纳发现的蓟马3新种,即蕉爪哇蓟马Javathrips musae;葛藤伪棍蓟马Pseudodendrothrips puerariae,两种均属蓟马科(Thripidae);中华斑管蓟马Stigmothrips chinensis,属管蓟马科(Phlaeothripidae)。     

中国浙江发现树蛙属一新种（两栖纲：树蛙科）

依据形态特征比较和分子系统发育分析,将采自浙江丽水的树蛙属物种订为一新种——丽水树蛙Rhacophorus lishuiensis Liu,Wang and Jiang,sp.nov.。新种丽水树蛙主要鉴别特征为:1)体型较小,雄性体长34.2~35.8 mm,雌性体长45.9 mm;2)鼓膜直径大于眼径之半;3)后肢较短,胫跗关节前伸贴体达眼后角;4)背面光滑,无明显疣粒;5)生活时背面绿色,无斑或散有稀疏的浅蓝绿色细点;6)咽喉部白色,虹彩黄色;7)雄性具单咽下内声囊,第一指基部具浅黄色婚垫。依据线粒体基因12S rRNA、tRNAval和16S rRNA共2 038 bp序列以贝叶斯法构建树蛙属41个物种间的系统发育关系,新种丽水树蛙为一个独立的支系,并与绿背树蛙(R.dorsoviridis)支系以高支持率形成姐妹群(后验概率1.00),支长较长。     

中国鮡属鱼类二新种记述(鲇形目:鮡科)

本文报道在四川西部收集的鮡科鱼类标本中,发现有鮡属(Pareuchiloglanis)的壮体鮡,新种P.robusta sp.nov.和四川鮡,新种P.sichuanensis sp.nov.,对二新种的形态特征作了详细描述,并与相近种的主要性状列表进行比较。     

西藏地区有瓣蝇类记述(三)花蝇科七新种描述

本文报道采自西藏的有瓣蝇类7个新种,均属花蝇科。正模标本保存在中国科学院上海昆虫研究所。 银额泉种蝇Pegohylemyia argyrometopa,新种（图1—3） 雄:体长6毫米。复眼裸,额宽约为前单眼宽的2倍,间额黑,间额鬃1,下眶鬃7—8,侧额及侧颜黑色上具银白色粉被,侧颜宽为触角第三节宽的4/3倍,触角黑,第三节长为宽的2倍,芒具毳毛,最长毛与芒基宽相等,颊高为眼高的1/5,银白色粉被明显,上倾口缘鬃3行,下颚须黑,中喙具粉被,长为高的4倍,口上片与额齐,后头背区有小毛。     

吴氏角叶蚤幼虫形态记述及其与同属另外三种的比较（蚤目：角叶蚤科）

描述了吴氏角叶蚤Ceratophyllus wui Wang et Liu 的幼虫形态,并与同属三种蚤幼虫作比较,标本采自湖北省西北部神农架海拔2 300 m 短嘴金丝燕四川亚种 Collocalia brevirostris innominata巢窝内。     

<Emphasis Type="Italic">Doederleinia gracilispinis</Emphasis> (Fowler, 1943), a junior synonym of <Emphasis Type="Italic">Doederleinia berycoides</Emphasis> (Hilgendorf, 1879), with review of the genus

A poorly known acropomatid, Rhomboserranus gracilispinis Fowler, 1943, was originally described on the basis of specimens from the Philippines. Since the recognition of Rhomboserranus as a junior synonym of Doederleinia, R. gracilispinis had been considered a valid species of Doederleinia. Examination of the holotype of R. gracilispinis and other type series of nominal species of Doederleinia showed them to be included in the single species D. berycoides (Hilgendorf, 1879). The sole representative of Doederleinia is distributed from Japan to northwestern Australia. This species is distinguishable from other acropomatids by the following combination of characters: head and body red; nine dorsal-fin spines; three anal-fin spines; no luminous organ; a row of conical teeth with a large canine tooth medially on lower jaw; large conical teeth on anterior part of outer margin with two or three large canine teeth on inner margin on upper jaw; and anus situated just anterior to origin of anal fin.     

Relative growth,morphological sexual maturity,heterochely, and handedness in Panopeus occidentalis (Brachyura,Panopeidae)

Studies on relative growth and sexual maturity are important to understand the reproductive biology of a species. The aims of this study were to determine the relative growth and to estimate the size of Panopeus occidentalis at morphological sexual maturity, as well as to confirm whether this species demonstrates heterochely or handedness. Individuals were collected every two months from March 2013 to July 2014 in the intertidal estuarine zone of Cananeia, São Paulo, Brazil. The following measurements were taken: carapace width (CW), carapace length (CL), right and left cheliped propodus length (CPL), right and left cheliped propodus height (CPH), right and left cheliped propodus width (CPW), abdomen width (AW), and first pleopod length (FPL). The morphometric relationship used to estimate the size at morphological sexual maturity were CW vs. AW for females and CW vs. FPL for males; these comparisons yielded estimated CW values of 15.60 mm and 16.67 mm, respectively. Heterochely was observed but handedness was not present. The species has a major cheliped on one side, but the side is not constant. This study provides the first insights on the relative growth, sexual maturity, heterochely, and handedness on a population of P. occidentalis in a conserved area.     

Redescription of a rare deep-sea batfish, <Emphasis Type="Italic">Halieutopsis bathyoreos</Emphasis> (Lophiiformes: Ogcocephalidae)

Halieutopsis bathyoreos Bradbury, 1988 (Lophiiformes: Ogcocephalidae), previously described only on the basis of the holotype (62.6mm in standard length) from the central North Pacific, is redescribed on the basis of the holotype and six additional specimens (41.2–68.7mm in standard length) collected from the western South Pacific, off Papua New Guinea, and the western North Pacific, including the Japanese Archipelago. Halieutopsis bathyoreos is distinguished from its congeners by having a shelflike rostrum extending anteriorly well beyond the mouth, a dorsal escal lobe slightly bisected ventrally, an illicial cavity square in outline and completely visible in ventral view, and lacking tubercles on the ventral surface of the disk. The following characters are newly added to the diagnoses of this species: rostrum width 21–29% of head length, tubercles on the dorsal surface of the disk about half the diameter of those on the lateral margin, and 13–15 large lateral-line scales on the tail.     

A new species of the ghost shrimp genus Neocallichirus Sakai, 1988 (Decapoda: Axiidea: Callianassidae) from the southwestern Atlantic

ABSTRACT

A new species of ghost shrimp, Neocallichirus pinheiroi, is described based on specimens collected in subtidal habitats of Saquaira beach, northeastern coast of Brazil. This new species resembles N. lemaitrei Manning, 1993, but differs from it primarily in having a third maxilliped propodus expanded ventrally, and in the case of males, a large subtriangular tooth on the cutting edge of the major cheliped dactylus. Diagnostic features of the new species include: (i) frontal margin of carapace with rounded lateral projections not exceeding rostrum distal margin, (ii) third maxilliped carpus with row of sclerotized setae on median internal surface, (iii) minor cheliped with cutting edge of dactylus microscopically pectinate, (iv) endopod of male second pleopod with appendices interna and masculina. This is the seventh described species of the genus Neocallichirus from the western Atlantic and the fourth report of this genus in Brazil. A key for identification of western Atlantic species belonging to the genus is provided.     

Copepods of the genus Halicyclops (Cyclopidae) from Belize

Halicyclops tetracanthus sp.n. and H. venezuelaensis Lindberg were found in the Sittee River Estuary, Belize. The new species is distinguished from all its congeners by having a distal spine and two spiniform heterogeneously ornamented setae on the inner margin of the terminal endopodal segment of legs 2 and 3. Halicyclops venezuelaensis, previously known only from Venezuela is redescribed based on specimens of both sexes. Differences in the ornamentation as well as in the relative length of some setae of the maxilla and maxilliped are pointed out as additional useful characters in the taxonomy of Halicyclops. This is the first record of Halicyclops in Belize.     

A new species, Gazza squamiventralis, from the East Coast of Africa (Perciformes: Leiognathidae)

Gazza squamiventralis sp. nov. is described as the fifth species of the genus, based on the holotype and eight paratypes, 42–96 mm in standard length, collected along the east coast of Africa, from Kenya to Mozambique. The species is similar to other congeners in general appearance, differing clearly from them in having the ventrolateral surface of the body scaled anterior to a line from the pectoral fin base to the pelvic fin origin (vs naked) and a smooth supraorbital ridge (vs finely serrated). Additionally, the species differs from G. dentex, G. rhombea, and G. achlamys in having the dorsolateral surface of the body scaled anterior to a vertical through the tip of the posterior branch of the supratemporal canal (vs corresponding region naked), and from G. minuta in having the first dorsal fin pterygiophore narrowly expanded anteriorly, with a concave margin (vs broadly expanded, with a convex or linear margin), and a short antrorse extension of the first anal fin pterygiophore (vs long). A key to the five species of the genus Gazza is provided. Received: May 30, 2000 / Revised: September 16, 2000 / Accepted: January 16, 2001     

The morphology of the larval stages of three species (Arrenurus mediorotundatus Thor, 1898; Arrenurus conicus Piers 1894; and Arrenurus cylindratus Piers, 1896) of the Megaluracarus subgenus (Acari: Hydrachnidia: Arrenuridae)

The morphology of the larval stages of three species (Arrenurus mediorotundatus, Arrenurus conicus and Arrenurus cylindratus) belonging to the Megaluracarus subgenus is described. Particular attention is paid to the common characters of the three species in which they differ from the other species belonging to the other subgenera. These are: the shape of the excretory pore plate, the shape of the dorsal plate, the length of coxal plate II medial margin and the C1-CpI, C4-CpIII distances. Other characters differ between the three species also. These are: the shape of the dorsal plate, the shape of coxal plate III, the shape of excretory pore plate and the presence or absence of secondary setae of the IFe3 setae.