REPORT ON THE ANOMURA. 29 



Genus Notopoides, n. gen. 



Carapace broadly ovate, smooth, convex from side to side and from before backwards. 

 Fronto-orbital border half as wide as the carapace, with a concavity on each side of the 

 rostrum. Ocular peduncles with the terminal joint cylindrical, the cornese well developed 

 and oblique ; orbits deep. Autennal peduncle massive, the second joint with an exten- 

 sive prolongation from its outer and distal border ; the flagellum short. Antennules with 

 the basal joint concealed by the antenna! peduncle, the second joint longer than the 

 third. External maxillipedes similar to those of Raninoides, the ischium considerably 

 longer than the merus and without the oblique line present in Notopus. Sternal shield 

 narrow opposite the second pair of legs, but slightly widening out again between the 

 second and third pairs ; all the limbs except the chelipedes inserted close to the middle 

 line. Chelipedes and ambulatory limbs as in Raninoides, but the last pair of legs 

 moderate in size and not filiform. 



This genus is in some respects intermediate between Raninoides and Notopus, 

 though more closely allied to the latter. From Raninoides it is distinguished by the 

 form of the carapace, ocular peduncles, sternal shield, and last pair of legs ; from 

 Notopus by the shape of the chelae, antennal peduncles, and external maxillipedes. 



Notopoides latxis, n. sp. (PI. III. fig. 1). 



Characters. — Carapace with the length considerably greater than the Isreadth, 

 polished, finely granular, the granulations more marked towards the anterior half of 

 the lateral border ; the regions are not defined, but the carapace rises somewhat abruptly 

 behind and parallel to the fronto-orbital margin, the line thus formed being coarsely 

 granulated. The fronto-orbital border is W-shaped ; the rostrum broad at its base, 

 subacute, hollowed out superiorly, with a median carina which loses itself before reaching 

 the transverse elevation ; on each side of the rostrum are three lobe-like processes separ- 

 ated by two narrow and deep fissures, the first process triangular, the second somewhat 

 square in outline, the third fused with the antero-lateral spine. The lateral border is 

 entire and convex, the anterior half with a series of granules which tend to become 

 spiniform, the posterior with a raised finely beaded line. 



The eyes are retractile into deep orbits, the margins of which are lined by hairs. 

 The antennules have the basal joint moderately long and but slightly dilated. The 

 segments of the antennal peduncles are granular and densely ciliated, the second short 

 and stout, with a very large rectangular prolongation (exceeding the joint itself in 

 length) arising from the outer distal border, the third narrower than, but almost as long 

 as, the second, the terminal of small size ; the flagellum equals the peduncle in length. 



