462 W. A. HASWELL. 
with their elongated compact testes, and Solenopharynx, 
with its compact testes and elongated tubular pharynx. 
There remain the Vorticid genera Vortex, Jensenia, 
and Derostoma, and the Proboscidan genus Gyrator. 
Of the former group Vortex and Jensenia have a 
pharynx doliiformis, compact paired testes, and un- 
branched vitelline glands, while Derostoma, though it also 
has compact testes, has the vitelline glands reticulate, and 
has sometimes a pharynx variabilis, while, like the other 
Vorticid genera, as mentioned above, it resembles Anomalo- 
coelus in the special arrangement of the male ducts. 
Gyrator, even if we were to regard the strand of fibres in 
front of the brain in Anomaloccelus as a rudiment or 
vestige of a proboscis, is pretty widely removed, owing to 
the possession of compact testes and two reproductive aper- 
tures; and of the other Proboscida, Pseudorhynchus, 
which is perhaps the nearest, has two ovaries and compact 
testes. 
On the whole, perhaps the closest affinities of Anomalo- 
coelus are with some of the Vorticida; but these affinities 
are not sufficiently close to allow of the new genus being 
included in that group. ‘Thus, if we follow the general 
scheme of division adopted by von Graff, it will be necessary 
to form a new family for the reception of this genus. 
Following von Grafi’s phraseology, we should define the 
family Anomalocclide in the following terms :—Rhabdo- 
coela with one reproductive aperture, a single ovary, the 
uterus combined with the genital atrium, reticulate vitelline 
glands, diffuse testes; with the vesicula seminalis and pros- 
tate reservoir enclosed in the penis-sheath ; the penis armed 
with numerous chitinous teeth; the pharynx a pharynx 
rosulatus; the intestine devoid of a definite layer of 
epithelium. 
