GEORGE HODGE ON NEW MARINE ACARI. 301 
within them, near the base, is a small hook of similar 
form to the others; two short filiform appendages issue 
from near the tip of the last joint, slightly curved, and 
terminating in blunt points ; on the “‘shoulders”’ are two 
long hairs, and a third a little below them. 
Hyes, two; lateral; situate a little behind the origin of the 
second pair of legs, irregular in form, and composed of a 
number of small granules. 
A distinct line runs across the body between the eyes, from 
which other lines branch, forming a long oval, superiorly 
truncated, representing the abdominal region ; two 
irregular lateral spaces containing the eyes; and a 
thoracic region, extending from the base of the rostrum 
to the abdominal region. All of these divisions are 
regularly figured with dark hexagonal markings, with 
clear spaces between, producing a honey-combed appear- 
ance. 
The chief peculiarity of this species is the form of the last 
joint of the tarsus, which affords a strongly marked character, 
differing in a singular manner from the same parts in other 
species of marine acari. 
A single individual from zoophytes, from 15-25 fathoms. 
Genus. PACHYGNATHUS. 
3. P. minutus. Pl. XVI, figs. 10, 11. 
Length of animal, from anus to end of rostrum, 5), of an 
inch; colour, reddish-brown; shield, truncate at inser- 
tions of first legs; rostrum, a stout bulb, tapering 
abruptly, and terminated by two lip-like organs; legs, 
short and stout, first joints small, second of similar 
dimensions but much rounded, third large and swelling 
in an upward direction, fourth similar to second, fifth 
short and very stout, sixth tapering abruptly and fur- 
nished with two falcate ungues, with a small tooth on 
the outer edge of each. At the base of the ungues, be- 
tween them, is a small hook. Legs smooth, with the 
exception of fifth and sixth joints, which have a few 
