Chaster — On the Mollusca ohtained hy the R.I.A. Cruises. 11 



[B. HUMPHEETsiANTjM, Bennett. 



Log 53, H. K. Jordan and A. R, Mchols.] 



ITassa inceassata, Strom, sp. {Buccinwn). 



Station YII. Logs 3, 9, 11, 12, 24, 26, 28, 29, 30, 31, 34, 

 35, [41] 50, [52, Ballinskellig Bay ; dei3th, 20-35i fathoms], 

 55, 62,63, A, C, E; depthi, to 40 fathoms. 



I^assa eeticulata, Linne, sp., {Buccimim). 



Stations [YI., VIII.] Logs 3, 35, 62. 

 CoLTJMBELLA Hali^eti, Jeffreys. 



Logs 58, 67, [69]. 



Tkophok clatheaius, Linne, sp. {Miirex), var. ieuncatus, Strom. 

 Stations VII., [IX,]. Logs 3, 9, 12, 24, 28, 33. 

 This species occurs only very sparingly. Alive specimen of 

 the var. alia, Jeffreys, at log 28. 

 'Teophon mtjkicattjs, Montagu, sp. {Murex). 

 Station VI. 



[ Var. bahvicestsis, Johnston, var. {Murex). 

 Log 33.] 



It is absolutely impossible to separate Trophon larvicensis 

 specifically from T. miiricatus. If a sufficient number of spe- 

 cimens are examined, a few typical exam^Dles of each may be 

 picked out, leaving a residuum of shells, which present every 

 intermediate gradation and which it is futile to attempt to 

 allocate to either species. 

 TuEPUEA LAPixLtJs, Linne, sp. (^Buccimim). 



Stations [VII.], VIII. Logs 35, [41], A. 

 [Cassidaeia EtJGOsA, Linne, sj). - Morio tyrrhena, auct. Logs 60, 67].^ 

 Depth, 40-539 fathoms. 



Teivia eueopcea, Montagu, sp. (Cyprsea). 



Stations [HI.], VIIL Logs 3, 33, 35, 63, [70]. 



AiiPHPEEAS pattila, Pennant, sj). (^Bulla). Log 28. 



Chenopus PES-PELiCAjsri, Linne, sp. {Stromhis). 



Station VI. Logs 3, 9, 12, 22, 24, 28, 29, 30, 33, 34, [35], 

 40, 42, 50, [53], 55, 73 ; depth, 5 to 80 fathoms. 

 Teiphoeis peeveesa, Linne, sp. {Troclius), 



Station [VII.], VIIL Logs 6, 9, 28, 30, 33, 34, 35, 40. 



^ Proceedings Eoyal Irish Academy, Srd Series, vol. i., 1888, p. 40. 



