142 MR. H. CHARLTON BASTIAN’S MONOGRAPH 
with a circlet of 4-6 spreading sete ; opposite cervical hairs not recognized, Integu. 
ment plain or with the appearance of longitudinal markings about 5000 apart. 
Œsophagus 4th of total length, gradually widening posteriorly, embraced by ring 
slightly in front of middle. Intestine covered with pale, regularly tessellated fat-cells 
Anus yts" from posterior extremity. Vulva slightly posterior to middle of body. Uterus 
bifid. Vaginal glands two, equal, pyriform. | Everetory ventral gland Opening close to 
anterior extremity, at a distance from it of only 4455 . HN. 
Male, not seen. 
Hab. Marine surface-mud of estuary, Falmouth. 
Not having seen the male of this species, I do not feel quite certain that it belongs to 
this genus. 
9. A. PELLUCIDA, n. sp. (Plate XI. figs. 149, 150.) 
Female, length 3^, breadth 345”. 
External Characters.—Body tapering considerably forwards, posterior extremity long 
and filiform. Head slightly rounded, provided with 4-6 setze; whilst laterally, at 51." 
from anterior extremity, on each side, is a row of six short equidistant sete. Integu- 
ment with an appearance of longitudinal markings 755" apart. 
(Esophagus about $th of total length, widening posteriorly, and embraced by ring 
slightly anterior to its middle. Zntestine covered with light, distinctly tessellated hepatic 
particles, Anus 143" from posterior extremity. Vulva slightly anterior to middle of 
body. Anal glands two. | Everetory ventral duct... : 
Male, not seen. 
Hab. Small green weed from tide-pools, Falmouth. 
4. A. ACUMINATA. 
Odontobius acuminatus, Eberth, Unters. über Nemat. p- 28, tab. i. figs. 6-9. 
“ Körper des Wiebchens weisslich, gerade. Vorderende stark verschmälert, Mund leicht 
abgerundet, Hinterende stark verdünnt, in einen geraden pfriemenförmigen Schwanz 
auslaufend. 
“ Körper des Männchens, Hinterende wie beim Weibchen. Zwei paarige, gekrümmte, 
leicht blassgelbe Spicula, davor ein unpaares, stabförmiges, accessorisches Glied. ...-- 
“ Weibchen 2-5 Mm. lang, 0:1 Mm. breit. 
“ Männchen 2 Mm. lang, 0:075 Mm. breit. 
* Oesophagus=ein Drittel der Körperlänge.” 
18. PHANODERMA\, Bastian. 
Enoplus, Eberth. 
GEN. CHAR. Body tapering at extremities. Caudal sucker well developed ; sucker-tubes 
three, rather short. Integument plain, or with longitudinal markings, very tràn* 
parent; cephalie sete present; integumental pores well marked anteriorly, lateral. 
* parès, bright or clear, and dépua, skin. 
