22 Records of the Indian Museum. [Vo.. VII, 
The branchial formula is as follows :— 
VIi. | VIII. | EX | XxX, | XI. | 2-00 Wo BOEY Dra 
| | I = 
Pleurobranchiae | Re | I | Pp lie) ory 
Arthrobranchiae a i e 2 | I | I | I t | 
Podobranchiae Ha ar I | 
Epipods a3 I iL I | I | I I 
So far as we are aware only two species belonging with cer- 
tainty to this genus have been described, M. agulhasensis, Bate, 
the type of the genus, and M. orientalis, Bate. Calman, in his 
valuable contribution to our knowledge of ‘this family (1906), has 
pointed out that Hodgson’s M. australis is in reality a species of 
Nauticaris and has also suggested that Milne-Edward’s Hippolyte 
spinifrons, which G. M. Thomson referred to Merhippolyte, 
is in all probability a species of Alofe. With this suggestion 
we were inclined to concur; but Chilton (1911, p. 547) has 
recently recorded four specimens of M. sfintfrons from the Ker- 
madec Is. and it is clear from his paper that the species is quite 
distinct from Alope palpalis. M. spinifrons, however, still stands 
in urgent need of redescription. 
From both the species in the ‘Challenger’ Report and from 
M. spinifrons the present species is readily distinguished by the 
peculiar form of the rostrum and by many other less conspicuous 
characteristics. Though it agrees almost exactly with Miss 
Rathbun’s account of Spivontocaris kauaiensis from the Hawaiian 
Islands (1906, p. 913) the resemblance must be entirely superficial. 
The carpus of the second peraeopods in Spivontocaris is composed 
of only six or seven segments and it is to be assumed that such a 
number occurs in S. kavaiensis—it is not mentioned in the 
description. Apart from this feature the two genera are readily 
distinguished by the gill-formula and by the number of segments 
in the mandibular palp. 
Two specimens of Merhippolyte calmani, 50 and 56 mm. in 
length, were obtained at St. 391. Both examples are female and 
in the larger, which is ovigerous, the eggs measure “46 X *39 mm. 
in theit longer and shorter diameters. 
Family CRANGONIDAE. 
Aegeon (Parapontocaris) bengalense, Wood-Mason. 
Aegeon (Parapontocaris) bengalense, Alcock, IgoI, p., 122, and Jil, 
Zool. Invest., Crust., pl. ix, fig. I. 
Two male specimens, measuring 29 and 30°5 mm.in length, 
were obtained at St. 391. 
