Eri/fhnean MoUascaii Fauna. /551 



yet publislietl *, with a vt'ry tew Gastropoda — the genera 

 Fusus and Xassa maitily. This work leaves little or nothing 

 to be desired for accurate elaboration of detail. 



Dr. F". Jousseaunic, so will known for the clo^e attention 

 he has given to the Erythriean and AdiMiese i\Iolliisca for a 

 long period, in 18!)8 publi.shcd an account of the Triforid* f of 

 the lied Sea, with descriptions of many new species and like- 

 wise various new genera which we have not seen, e. g. Olt- 

 toma ottitoma, Issina issina |, and others. 



Two new IScalariw have been likewi.se lately described by 

 Clessin § from this region. Bavay has written on the 

 Mollusca of the Suez Canal || and Dall on those of the Gulf 

 of Aden obtained by the Field Columbian Museum East 

 African Expedition^. 



Dr. E. von Martens, finally, in 1899** described three 

 new Erythrgean oysters [iJstrea peclinata, dolabriformis, and 

 ortiscui<), collected long ago (1820-25) by Hemprich and 

 Ehrenberg. 



It is much to be hoped that Commander Shopland will, ere 

 long, be able to issue a second edition of his invaluable cata- 

 logue, which will then furnish a most complete and up-to-date 

 record of what was known at the commencement of the 

 twentieth century of the Adenese ^lolluscan fauna. I woull 

 just add that it is my hope to be in a position before very 

 long to draw some tangible comparisons between this fauna 

 and that of the Persian Gulf, Gulf of Oman, and Arabian 

 Sea, as evidenced by the Townsend collections mentioned 

 above ; but one must wait until the residue of both these 

 large gatherings has been finally worked out. 



Sifitrurn indigoferum^ .sp. n. (PI. IX. ^\g. 1.) 



S. testa ovato-fusiformi, solida, brunneo-cinerea, corrugata; anfracti- 

 bu8 5, quorum apicales , . , ? (in omnibus nostris speciminibus 

 detriti), caeteris longitudiualiter nodulosi-costatis, costis percrassis, 



• Among the nov. sp. are 5 Cuspidaria, 1 Raeta, 1 Lyonsia, 1 Cardita, 

 2 Amumtim, ',\ Gastroch(Ptia, 1 Diplodonta, 1 Chime, 2 ScintiUa, 1 Tel- 

 Una, some dredged at great depths. 



t Bull. Soc. rhiloni. ix. pp. 71-77. 



X * Naturaliste," 1898, pp. 14 ci sqq. 



§ Martini and Chemnitz, Svstem. Conch.-Cab., Scalariidffi, S. Clessin 

 pp. 49, 57. 



|] Uavay, A., "Note sur les Mollusques du Canal de .Suez," Bull. Soc. 

 Zool. France, .\xiii. pp. 101 104. 



H Field C(.l. Mus. Zool. i. pp. 187-189 (189S). 



** ' SymboLne Physicoe, sen Icones adhuc inediUe .... ouae ex itineribua 

 per Libyam, /Egyptum, . . . . F. G. Hemprich et C. G. Ehienbertr. annis 

 1820-26 redierunt. Zoologica. II. Mollusca.' 



