ON THE ANGUILLULIDÆ, 141 
5. E. GRUBII. 
Grube, Ausflug nach Triest und dem Quarnero, 1861.—Eberth, Unters. über Nemat., p. 22. 
17. ANTICOMA,!, Bastian. 
Odontobius, Eberth. 
Gex. CHAR. Body tapering at extremities. Caudal sucker rather small; sucker-tubes 
undeveloped. Integument plain; short rows of opposite sete on lateral aspects of 
anterior extremity ; also cephalie setæ, and others more or less scattered over pos- 
terior part of body of males; papillæ absent. Pharyngeal cavity none. Œsophagus 
not distinctly museular, widening posteriorly, surrounded by ring near its middle. 
Intestine mostly covered with rather pale granules having a tessellated arrange- 
ment. Vulva about middle of body. Uterus bifid. Spicules two, curved. Accessory 
piece wanting. Supplementary organ small, simple, tubular, Ocelli absent. Vaginal 
glands two, pyriform, equal; anal two, medium-sized, nucleated. Æxcretory ventral 
gland opening opposite anterior of cesophagus. Lateral canals narrow, cellular. 
Movements moderately active. 
l A. EsERTHI, n. sp. (Plate XI. figs. 143-145.) 
Female, length 1", breadth 45 - 
External Characters.—Body whitish, slender, tapering considerably at extremities, 
especially at posterior, which is filiform. Head bluntly rounded, provided with a circlet 
of 6-8 well-marked sete, whilst laterally, at a distance of 535^ from anterior extremity, 
on each side, there is a row of 5 or 6 sete extending at right angles from body. Integu- 
ment plain. 
Esophagus 4th of total length, gradually widening posteriorly, embraced by ring near 
its middle. Intestine well covered with light-coloured tessellated fat-particles. Anus 
Jr” from posterior extremity. Vulva considerably anterior to middle of body, 455" from 
anterior extremity. Uterus bifid ; segments symmetrical. Anal glands two. Excretory 
ventral duct opening opposite termination of anterior zrd of cesophagus. 
. Male, length 1", breadth 435". 
Posterior extremity having a well-marked row of setze in mid-abdominal region, above 
and below anus. Anus 745” from posterior extremity. Spicules curved, pointed, en- 
larged at upper extremities. Supplementary organ y5 above anal cleft, oblique, simple, 
tubular, 14.5" long. 
Hab. About the roots of Corallina officinalis, tide-pools, Falmouth. 
2. A. LIMALIs, n. sp. (Plate XI. figs. 146-148.) 
Female, length 45", breadth 417". 
External Characters.—Body whitish, tapering considerably anteriorly, and also at 
posterior extremity, which is rather long and filiform. Head slightly rounded, provided 
1 ' ^ 
rro, opposite, and xöun, hair, on account of the opposite rows of setæ on the lateral aspects of the cervical 
n, 
