16 Records of the Indian Museum. [Voy. VII, 
Only a few of the more important papers dealing with deep- 
sea Decapoda are cited. The date appended to an author’s name 
affords reference to the short bibliography at the end of the 
paper. 
DECAPODA NATANTIA. 
Tribe Penaeidea, 
Family PENAEIDAE. 
Sub-family PENEINAE. 
Peneopsis coniger var. andamanensis (Wood-Mason). 
Metapeneus coniger var. andamanensis, Alcock, 1901, p. 17, and 
LQ06, p-<275-pluv wees. 
Peneopsis coniger var. andamanensis, de Man, IgIl, p. 61. 
Eleven males and nineteen females were obtained at St. 389. 
The distinctions between the variety and the typical form which 
are afforded by the thelycum are well marked and apparently 
constant. The form found in the variety has been illustrated by 
Alcock and we take this opportunity of giving a similar figure 
of the thelycum of the typical P. coniger (pl. i, fig. 7). 
In males we have been unable to detect the pair of spines 
which de Man mentions at the base of the second peraeopods. 
Parapeneus rectacutus (Bate). 
Peneus (Parapeneus) rectacutus, Alcock, 1go1, p. 17, and I/l. Zool. 
Invest. Crust., placa, meets: 
Parapeneus rectacutus, Alcock, 1906, p. 33, pl. vi, figs. 19, 19a-b, 
and de Man, rgII, pp. 78, 82. | 
A much damaged female from St. 391 may safely be referred 
to this species. The station represents the most westerly point 
at which P. rectacutus has been observed. 
With reference to de Man’s notes on this species (loc. cit., 
p. 82) we would observe that the minute rudiments of exopods 
on the thoracic legs, mentioned by Wood-Mason and Alcock (1891, 
p- 274), can be detected in examples preserved in the Indian 
Museum. ‘The ridge defining the anterior part of the cervical 
groove agrees precisely with Alcock’s figure, but in some females 
the spine which is stated to occur on the basis of the second 
peraeopods appears to be missing. The last pair of legs fails to 
reach to, or slightly exceeds, the apex of the antennal scale. 
There is no sharp spine at the distal end of the lobes of the 
petasma. 
Haliporus aequalis, Bate. 
Haliporus aequalis, Alcock, Igol, p. 23, and de Man, IQII, p. 32. 
Seven males and fourteen females were obtained at St. 391. 
