392 Records of the Indian Museum. [Vor XII, 
This genus is formed for the reception of a small and peculiar 
Hippolytid of the most grotesque appearance, that lives on weeds 
in the vicinity of Port Blair. On its appendages, including the 
eyestaiks, are long straggling hairs and these, in conjunction with 
its colour and the unusual attitude it adopts, combine to give it a 
most extraordinarily close resemblance to small tufts of algae. 
In most of the characters mentioned above the genus agrees 
with Calman’s Tvachycaris,! though in outward appearance there 
is the widest possible difference between them. The type and only 
known species of Trachycaris® is that described by Spence Bate 
from the West Indies under the name Platybema rugosum. It 
agrees with Phycocarts in having only two segments in the carpus 
of the second peraeopods and in the great size of the endopods of 
the second to fifth pairs of pleopods. ‘The latter character, though 
given without qualification in Calman’s diagnosis, is probably 
found only in females. 
Phycocarts differs from Tvachycarts in the absence of the antero- 
lateral spine of the carapace and in the presence of an incisor-pro- 
cess on the mandible? The latter feature is of considerable 
importance and indicates that the genus is in reality allied to Thor 
and Hippolyte rather than to Trachycaris and other genera of the 
Latreutid section of the family. From Thor, Hippolvie and the 
peculiar N. Atlantic genus Cryptocheles, it is easily distinguished 
by the number of segments in the second legs. 
Phycocaris simulans, sp. nov. 
(Plate xxxvi, fig: 2): 
The carapace is arched above and is produced anteriorly to a 
short and simple rostrum that reaches only a little beyond the end 
of the basal antennular segment. On the frontal margin above 
the eye there is, on either side, a short and stout supraorbital 
spine. ‘The antero-lateral (pterygostomian) spine is absent, but 
there is a smal! spine at the base of the antenna; the antero- 
inferior angle is rounded. The carapace is not carinate in the 
middle line and bears a few long scattered hairs. 
The eyes are comparatively long and slender. In dorsal view 
the cornea is not broader than the stalk and is about half its 
length. There is no ocellus; but at the junction of the cornea and 
stalk there is a circlet of long hairs, a remarkable feature not 
known in any other Hippolytid. 
The basal segment of the antennular peduncle (text: fig. 2a) is 
fully as long as the two following combined; its lateral process is 
1 Calman, Ann. Mag. Nat. Hist., (7), XVII, p. 33 (1906). 
2 Platybema pristis, Nobili, | Ann. Mus. civ. Genova, (2), XX, p. 233 (1899) | 
should doubtless be referred to the genus Latreutes. 
3 The statement that the mandible in Trachycaris is without incisor-process is" 
given by Calman on the authority of Spence Bate. I have examined a specimen 
T. rugosus and am able to confirm the accuracy of the observation. 
