Polkepsilonema mombasae gen. et sp.n. andPternepsilonema servaesae gen. et sp.n. (Nematoda,Epsilonematidae) from East African coasts |
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Authors: | Dominick Verschelde Magda Vincx |
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Institution: | (1) Institute of Zoology, Marine Biology Section, University of Ghent, K.L. Ledeganckstraat 35, B-9000 Gent, Belgium |
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Abstract: | Two new genera and species from Kenyan tidal areas,Polkepsilonema mombasae gen. et sp.n. andPternepsilonema servaesae gen. et sp.n., are described. Both are characterized by the presence of at least fourteen subcephalic setae and by thick thorns on the ventral body region of males. In the first genus, eight to ten subcephalic setae are situated anterior to the amphid, and the ambulatory setae are bisinuous. In the second, the subcephalic setae are situated at the posterior edge of the rostrum, and the ambulatory setae are straight.A key to the 13 genera of the Epsilonematidae is presented.Abbreviations a
body length divided by maximum body diameter
- abd
body diameter at level of anus
- amph %
diameter of amphid as a percent of head diameter
- Asl
length of anteriormost ambulatory seta of external subventral row
- b
body length divided by pharyngeal length
- c
body length divided by tail length
- cs
length of cephalic setae
- dcs
distance from rostrum edge to cephalic setae
- gub
length of gubernaculum
- L
body length
- lct
length of copulatory thorns
- lpt
length of precloacal thorns
- mbd
maximum body diameter of posterior body region
- (mdb)
minimum body diameter
- mbd/(mbd)
maximum body diameter divided by minimum body diameter
- mbd ph
body diameter at level of pharyngeal bulb
- N
number of body rings
- ph
length of pharynx
- spic
length of spicule measured along the arc
- SSph
length of subdorsal somatic setae in pharyngeal region
- t
tail length
- tmr
length of nonannulated tail region
- V
position of vulva as a percentage of total body length from anterior |
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Keywords: | Epsilonematidae two new genera |
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