82 Memoirs of the Indian Museum. [Vol. II, 
the free edge. In my specimens the first step is a rather deep incisure, only bearing 
slender bristles at its base, while each of the others bears either six or eight stout 
spines arranged in two parallel rows ; there are three stout spines external to the 
uppermost step, the outermost spine being the largest and the other two being 
parallel and not in line. 
Fig. 7. — ]\Iaxilla of C .virgatum var. hunteri, x 50. 
The penis is long and stout, not minutely annulated, but with irregular 
transverse wrinkles on its distal half. The tip is obtusely pointed and bears a thin 
tuft of short hairs. The dorsal half of the proximal part bears numerous long, slen- 
der hairs, which make their appearance also on the ventral half towards the tip. The 
external surface is coloured of a faint and uniform vinous tinge, which pervades the 
whole of the animal’s integument, including the mouth parts, and is due to the pres- 
ence of innumerable very minute pigment cells. 
Although, owing to the existence of intermediate forms, I do not consider it ad- 
visable to divide the species into subspecies or local races (see p. 68, antea), it must be 
acknowledged that it is possible to distinguish several varieties which have a certain 
stability. They may be recognized as follows : — 
Var. I (typical form). — Capitulum square above, with well-defined vertical bars 
of a darker colour than the rest of the membrane. Scutum trilobed but not 
Y-shaped, the three lobes of equal length. Tergum somewhat sinuate. 
Habitat. — Atlantic and Arctic Ocean, Pacific, Mediterranean. 
Var. II {intermedia, nov.). — Tergal margin of the capitulum forming an angle 
considerably greater than a right angle with the carinal margin ; stripes 
distinct. Tergum straight. Carina somewhat sinuate or angulate. Scutum 
Y-shaped ; the lobe pointing towards the carina shorter than the other two. 
Habitat. — On bottom of ship from Brazil {Cornalia). 
Var. Ill {Cineras hunteri, Owen). — Upper part of capitulum not or barely angu- 
late behind. Stripes obsolete or obsolescent. Tergum straight or nearly 
so. Carina usually arched. Scutum narrowly Y-shaped. 
Habitat. — Indian Ocean, S. Pacific. 
