142 MR. H. CHARLTON BASTIAN'S MONOGRAPH 



with a circlet of 4-6 spreading setae ; opposite oervical hairs not recognized. Integu- 

 ment plain or with the appearance of longitudinal markings about ^oVo" apart. 



(Esophagus \ila. of total length, gradually widening posteriorly, embraced by ring 

 slightly in front of middle. Intestine covered with pale, regularly tessellated fat-cells. 

 Anus yxs" from posterior extremity. Vulva slightly posterior to middle of body. Uterus 

 bifid. Vaginal glands two, equal, pyriform. Excretory ventral gland opening close to 

 anterior extremity, at a distance from it of only T^g-g". 



Male, not seen. 



Sah. 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. 



3. A. PELLTJCiDA, n. sp. (Plate XI. figs. 149, 150.) 

 Fetnale, length ^", breadth ^aT "• 



External Characters. — Body tapering considerably forwards, posterior extremity long 

 and filiform. Head slightly rounded, provided with 4-6 seta? ; whilst laterally, at e^" 

 from anterior extremity, on each side, is a row of six short equidistant setae. Integu- 

 ment with an appearance of longitudinal markings -roo~s" apart. 



(Esophagus about ^th of total length, widening posteriorly, and embraced by ring 

 slightly anterior to its middle. Intestine covered with light, distinctly tessellated hepatic 

 particles. Anus x^V from posterior extremity. Vulva slightly anterior to middle of 

 body. Anal glands two. Excretory ventral duct . . . 



Hale, not seen. 



Hab. Small green weed from tide-pools, Falmouth. 



4. A. ACUMINATA. 



Oduntobius acuminaius, Eberth, Unters. iiber Nemat. p. 28, tab. i. figs. 6-9. 



" Korper des Wiebchens weisslich, gerade. Vorderende stark verschmalert, Mund leicht 

 abgerundet, Hinterende stark verdiinnt, in einen geraden pfriemenformigen Schwanz 

 auslaufend. 



" Korper des Miinnchens, Hinterende wie beim Weibchen. Zwei paarige, gekriimmte, 

 leicht blassgelbe Spicula, davor ein unpaares, stabformiges, accessorisches Glied 



" Weibchen 2-5 Mm. lang, 0-1 Mm. breit. 



" Mjinnchen 2 Mm. lang, 0-075 Mm. breit. 



" Oesophagus = ein Di-ittel der Korperliinge." 



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 trans- 

 parent ; cephalic setce present ; integumental pores well marked anteriorly, lateral. 



' ^ai'os, bright or clear, and lipfxa, skin. 



