154 MR. H. CHARLTON BASTIAN’S MONOGRAPH 
Male, length 4", breadth 335 - x 
Anus 414" from posterior extremity. Spicules 3,0 long, solitary, very slender, and 
slightly curved. 
Hab. Fine surface-mud from marine estuary, Falmouth. 
4. S. ORNATA. 
Enoplus ornatus, Eberth, Untersuch. über Nematod. 1863, p. 40, tab. iv. figs. 13-15, tab. v. figs. 5 & 6, 
“ Körper fadenförmig, gegen beide Enden verschmälert. Vorderleib gerade, Hinterleih 
bei beiden Geschlechtern eingerollt, stärker bei dem Männchen als bei dem Weibchen. 
Kopf fast quer abgestutzt. Schwanz stumpfspitz mit feiner terminalen Oeffnung, 
Hinter dem Munde ist der Kórper leicht eingeschnürt. 
* Länge des Weibchens 4 Mm., Breite 0:125 Mm. 
“Länge des Münnchens 5 Mm., Breite 0:1 Mm. 
“ Verhältniss der Oesophaguslünge zur Körperlänge wie 1 : 4." 
5. S. BARBATA. 
Urolabes barbata, Carter, Ann. of Nat. Hist. ser. 3, vol. iv. (1859) p. 43, pl. iii. fig. 32. 
“ Female. Body the same as the last ( U. ocellata), but much longer. Head furnished 
with four linear, short cirri. Tail short, soméwhat curved, furnished with a short, 
pointed, digital termination. Mouth and anus the same. Vulva situated much pos- 
teriorly to the middle of the body, about the junction of the middle with the anterior 
third of the posterior half." 
“ Alimentary canal the same as in the foregoing species, but the intestinal sheath 
terminating less abruptly upon the commencement of the rectum. Hepatie organ the 
same. Organs of generation double, oceupying the middle part of the body ; their form 
undetermined. Ocelli at some distance from the head, of the same colour as in U. 
infrequens." 
“ Size th inch long, and glsth of an inch broad." 
“ Male, the same as the female; but with a large, thick, curved tail, obtuse at the extre- 
mity, tuberculated in its inner curvature, and furnished on each side with a row of short 
setæ, extending from above the anus towards the tip; also three or four setze on the 
outer curvature. "Testes and penis the same as in the foregoing species; form of the 
testes undetermined." 
Hab. “ Silty clots of Oscillatoria floating in the salt-water main drain of the town of 
Bombay." 
15. ONCHOLAIMUS, Dujardin. 
Enoplus, Diesing & M. Schultze. 
GEN. CHAR. Body often elongated ; posterior extremity blunt- or sharp-pointed. Caudal 
sucker variable, sometimes well developed, with 2 or 3 distinct sucker-tubes. Integw 
ment plain or with longitudinal markings; cephalie setze generally present, and 
occasionally a few scattered over other parts of the body ; cephalic papillee wanting; 
integumental pores most distinct in mid-dorsal and ventral regions. Phar! yngeal 
cavity large, ovoid, bounded by horny parietes, and having three longitudinal, slightly 
