REPORT ON THE CRUSTACEA MACRURA. 885 



to the hepatic region, where it meets another that also commences at the posterior margin 

 of the carapace, and horizontally traverses the lateral walls ; the two unite and continue 

 for a short distance as a single ridge, which dies out just below the one that corresponds 

 with the antennal tooth. 



The pleon has the somites subequal in length, increasing a little posteriorly ; the 

 first is dorsally smooth and a little elevated in the centre ; the second is armed with a 

 small, anteriorly directed tooth situated nearer the anterior margin, but not on it ; the 

 third is dorsally carinated, and produced to a tooth both at the anterior and posterior 

 extremity, the anterior tooth being directed forwards and obliquely upwards, and the 

 posterior, which is the longer, directed backwai'ds, reaching as far as the middle of the 

 fourth somite, which also is posteriorly produced to a sharp-pointed tooth, as is likewise 

 the fifth, but the sixth has none. 



The telson is long and gradually narrows to the apex, which is armed with two or 

 three small hairs, and on the lateral walls with two or three small distal spinules. 



The ophthalmopoda are large, pyriform, and quite equal in length to half the carapace; 

 the ophthalmus is large, being fully equal to half the length of the ophthalmopoda in 

 diameter. 



The first pair of antennae reaches to about half the length of the rostrum, and termi- 

 nates in two flagella which are subequal in length with the peduncle, the inner being the 

 more robust. 



The second pair of antennae is a little longer than the rostrum, and carries a scapho- 

 cerite that is foliaceous, long and narrow, slightly narrowing to the distal extremity, 

 fringed on the inner margin with fine hairs, and strengthened on the outer margin with 

 a strong, smooth edge, that terminates at the distal extremity in a long and slender 

 tooth. 



The mandibles have not been examined, as I did not wish to injure the specimen. 



The second pair of gnathopoda is pediform and six-jointed ; the second joint supports 

 a leaf-like ecphysis, and it terminates in a short, sharp-pointed dactylos. 



The first pair of pereiopoda and all the other pairs correspond in form, but gradually 

 increase in length posteriorly ; they all carry a leaf-like basecphysis except the posterior 

 pair, which is the longer, and does not carry an ecphysis. 



The pleopoda are short and biramose. The sixth pair has the branches subequal, 

 and about the same length as the telson. 



Observations. — This species is of much interest, and it is to be regretted that there is 

 only a single specimen in the collection. Some years since the late Sir Walter Elliot, 

 F.R.S., took, off Waltair, on the coast of Coromandel, a specimen of which I have a care- 

 fully drawn figure before me. It differs only specifically from that which I have just 

 described, and I wish to record it under the name of Procletes ellioti, in honour of its 

 original discoverer. It resembles Procletes biangulatus, but differs from it in having 



