300 GEORGE HODGE ON NEW MARINE ACARI. 
being the largest; first and third nearly alike; fourth 
(the terminal), narrow and tapering to a blunt point, set 
with two strong hairs which spring from near the base. 
Legs little differing in length, moderately hispid, the two 
anterior pair shorter than the posterior; third joints | 
shorter and larger than the others; terminal narrow, 
tapering, and tipped with two falcate ungues, which are 
delicately pectinated on the inner margin, and furnished 
with a sharp tooth on the outer edge, about one-third 
distant from the point of the claw. Between these 
ungues is a very small hook, of similar form to the 
larger. 
Eyes, two; lateral; situate a little behind the origin of the 
second pair of legs; irregular in form, slightly angular, 
and composed of dark-coloured granules of minute size. 
Upper surface of body studded with minute irregular 
granules, which sometimes form a rosette, differing how- 
ever in character from those seen in HH. rhodostigma. 
A single individual obtained from the washings of zoophytes, 
from 15-25 fathoms. 
2. H. ocunatus. Pl. XVI, figs. 8, 9. 
Length of body to tip of rostrum, 7; of an inch ; colour, 
reddish-brown. Rostrum narrow at base, slightly bulging 
out, and then tapering to a blunt tip, slightly cleft, and 
forming two lips from which issue two slender styles. 
Palpus composed of four joints, the second being the 
largest; first larger than the third; fourth (the terminal) 
narrow, slightly tapering to a point and furnished with 
two strong hairs, springing from near the base. 
Legs, little differing in length, sparingly hispid; the an- 
terior pair a trifle shorter than the others; first, second, 
and fourth joints small; third and fifth large and short ; 
sixth (terminal), straight to within about a third of the tip, 
where it abruptly forms a shoulder (on one side), and then 
curves to the tip, from which spring two falcate ungues, 
each provided with a short tooth upon its outer margin; 
