1g12.] S. Kemp & R.B.S.SEWELL: Notes on Decapoda, III. 19 
seems to be longer in A. rostridentata than in A. foltacea. In the 
former species it reaches exactly to the apex of the inner uropod, 
the slightly greater length shown in the ‘ Investigator’ Ilustra- 
tions being due in all probability to a perspective effect. 
We have been unable to find any distinctions between the 
two species in regard to the form of the oral appendages or of 
the thelycum and petasma. 
Bouvier (loc. cit., p. 53) states that the branchial formula 
of Aristaeomorpha is the same as that of Benthesicymus; but 
Alcock notes the presence of two arthrobranchiae at the base of 
the penultimate pair of peraeopods, which, according to Bouvier’s 
account (/.c., p. 17), do not occur inthe latter genus. Examination 
of the specimens in the Indian Museum shows that these bran- 
chiae occur both in the Indo-Pacific and in the Mediterranean 
species of Aristaeomorpha. 
In the Indian Museum no specimen of Avistaeomorpha can be 
found bearing the name A. giglioliana, but the example figured by 
Wood-Mason under this name is undoubtedly that which is pre- 
served in the collection with the label ‘‘ ‘Washington,’ St. xiv, 
13-viii-81 ; 39° or’ 28” N., 9° 30’ 19” E. 772 metres. Enrico 
H. Giglioli.’’ It is evident that Wood-Mason figured this speci- 
men from the Mediterranean for comparison with A. rostridentata, 
but his reasons for assigning it a new specific name remain 
obscure, for he never published any description. The measure- 
ments of the specimen, a female 170 mm. in length, are shown 
on p. 18; it is unquestionably an example of A. foliacea. 
Family SERGESTIDAE., 
Sergestes bisulcatus, Wood-Mason, 
Sergestes bisulcatus, Alcock, 1901, p. 49; Ill. Zool. Invest., Crust., 
pl. 1, figs. 1, ra-b, and Stebbing, 1905, p. 87, pl. xxiv A. 
A small female, about 46 mm. in length, is referred to this 
species. It was obtained at St. 388 and was almost certainly 
caught during the ascent of the trawl. 
S. bdisulcatus is very closely allied to the Atlantic S. robustus, 
Smith, but is readily distinguished by the sharply cut cervical 
groove, which is specially distinct on the dorsum of the carapace. 
Tribe Caridea. 
Family PASITIPHAEIDAE. 
Sympasiphaea annectens, Alcock. 
Sympasiphaea annectens, Alcock, IgoI, p. 63, and Ill. Zool. Invest., 
Crust), pl. ti, fig. 7: 
A large female, gt mm. in length, was obtained at St. 388. 
The rostrum is more strongly elevated at the apex than 
in the type and the epipod at the base of the second maxilliped, 
