1872.] Wood-Mason — On NejpJiropsis. Dobson — On Taphozous. 151 



The paper' together with illustrations will appear in the Journal of 

 the Society, Part II. 



V. — On new and little known species op Phasmidje, Paet I, 

 genus Bacillus, — ly J. Wood-Mason, Esq. 



The author exhibited the species described by him, together with nu- 

 merous excellently executed drawings. 



VI. — On Nephkopsis Stewaeti, a new genus and species of maceit- 

 Eous ceustaceans, deedged in deep watee oee the Easteen Coast 

 of the Andaman Islands, — hy J. Wood-Mason, Esq. 

 The interesting macrurous Crustacean described in this paper is closely 

 a'.ied to Nephrops Norvegicus of Northern Eui'opean seas, so closely allied, 

 i indeed, that were it not for the absence of the squamiform appendage of the 

 antennae, it would have to be placed in the same genus as a second species. 

 The absence of this appendage rendered necessary the establishment of a 

 new genus for its reception. The discovery in these warm seas of a very 

 close ally of so characteristically a northern species, remarkable though it 

 was, would appear less surprising, when the fact, that this Crustacean lived 

 and burrowed in the mud of the sea-bed at a depth of nearly 300 fathoms 

 in a temperature not exceeding 50° Fahr., came to be considered. Tlie 

 chief point of interest attaching to this new form lay in the loss of its 

 organs of vision from disuse, as in Calocaris MacAiidrewecjB, Bell, and 

 Camlarus pelliicidus, and the other Crustaceans of the Mammoth Cave ; 

 and in the increased length of tlie antennae and development of the basal 

 joints of the antennules in which the auditory organs are lodged, — modifi- 

 cations which the author regarded with Mr. Darwin as produced by natm-al 

 selection in compensation for blindness. 



YII. — Notes on the Asiatic species of the genus Taphozous, Geoff., — 

 ly G. E. DoBSON, B. A., M. B. 



The Asiatic species of the genus Taphozous, Geoff., described by Tem- 



minck in 1841, were four in number, viz., — T. saccolaimus, Temk., T. longi- 



manus, Hardw., T. melanopogon, Temk., and T. hicolor, Temk. Several 



[ specimens of the last named species are said by Temminck,* to have been 



sent from Calcutta, but up to the present time the only specimens obtained 



' at Calcutta, or in any other part of India, agreeing with the description of 



! this species, have been young females of ^. longimanus, or T. melanopogon. 



As T. longimanus is the only species of the genus common about Calcutta, 



the specimens described by Temminck under the name of T. hicolor were 



* Monograph, de Mammal. II, p. 290. 



