746 
ZOOLOGICAL LITERATURE. 
13. Pharyngeal cavity cylindrical. CEsophagus with elongated swelling 
at middle, with rounded one at termination as in 11. Caudal alo3 
large, supported by rays Hhabditis, Duj. 
II. Maiune. 
Spicules two, equal, solitary, or with 1, 2, or 4 accessory pieces. Occasionally 
a single supplemental organ in ventral region, above anus. Ventral excretory 
gland present in all (?). Caudal sucker universal. 
* Integument plain, or with longitudinal markings. Oesophagus embraced 
by glandular (?) ring. 
t Spicules solitary or with a single posterior median piece. 
14. Pharyngeal ca\ity long, complex, crossed by lines or bars, with a 
funnel-shaped body on its inferior aspect Symplocostomaj g.n. 
15. Pharyngeal cavity large, with three tooth-like projections. 
Oncholawius, Duj. 
16. Pharyngeal cavity none Enchelidmmjl^hv. 
17. Integument having a row of opposite setce on dorsal and ventral surfaces. 
Ocelli none Anticoma, g. n. 
18. Pharyngeal cavity small. Ocelli distinct and lateral. Fhanoderma, g. n. 
tt Spicula having two equal accessory pieces. 
19. Pharyngeal cavity none. Ocelli distinct, dorsal. Excretory glandular 
organs two, opening on either side of the head. Lcptosomatum, g. n. 
20. Pharyngeal cavity indistinct, surrounded by three separate teeth. 
Ocelli not distinct. No oesophageal ring, and integument with 
delicate transverse as well as longitudinal stria3. Enoplus, Duj. 
21. Pharyngeal cavity cup-shaped. CEsophagus enlarged behind pharynx. 
Anal glands large. Accessory pieces recurved. Linhomocus, g. n. 
** Integument with transverse striae or dots. No oesophageal ring, 
t Ocelli absent. 
I Uterus unsymmetrical. 
22. Pharyngeal cavity absent. No vaginal glands . . Tachyhodites, g.n. 
23. Pharyngeal cavity hemispherical, vaginal glands two, unequal. 
Theristus, g. n. 
24. Pharyngeal cavity large, somewhat spherical. Vaginal gland single, 
posterior Sphcerolaimus, g.n. 
II Uterus symmetrical. 
25. Pharyngeal cavity very small. Spicules with or without a very small 
posterior accessory piece Comesoma, g. n. 
26. Pharyngeal cavity none. Spicules stout, curved, with two accessory 
pieces Spira, g. n. 
27. Pharyngeal cavity none. Teeth doubtful. Spicules as in 26. 
Odontobius, Roussel. 
tt Ocelli present or absent. 
28. CEsophagus cylindrical. Accessory pieces strong, in two pairs. 
Cyatholaiimis, g. n. 
29. CEsophagus having well-marked swelling posteriorly. Accessory pieces 
two, rather indistinct Spiliphera, g. n. 
30. Pharyngeal cavity rather indistinct. Accessory pieces two, strong, 
hooked Chromadora, g. n. 
