JOURNAL OF CONCHOLOGY. 405 



DESCRIPTIONS OF ELEVEN NEW SPECIES 



BELONGING TO THE 



GENERA COLUMBARIUM, PISANIA, MI NOLI A, 



LLOTIA, AND SOLARIUM. 



By J. COSMO MELVILL, M.A., F.LS., &c. 



(Read before the Conchological Society, July 8th, 1891). 



Columbarium distephanotis sp. nov. (PI. ii, fig. 4). 



C. testa gracillwia, fiisiformi, alba, anfradibus septcni, ad 

 suturas angulato-coinpressis, ordine spinanim duplicato 

 decoratis, spinis elevatis, corottulatis, dentifofinibus, canali 

 longo, oblique tenicisiilcato, ha^id spinescente, apertura pyri- 

 foi-7ni, labro swiplici, margi?ie columellari plannto. 



Long.: 19.50 mill. Lat.: 5.25 mill. 



Hab. : Torres Straits, Nov. Guinea mer. 



A very delicate, pure white little shell. From the three 

 known species of Cohi/nbariuin (rightly dissevered by Prof. 

 E. von Martens from Fusiis owing to the toxoglossate den- 

 tition), the C. distephanotis differs in several important points. 



From the type C. pagodus (Less), and C. pagodoides (Wat- 

 son), in the double row of spines on the body whorls; from 

 C. spiiiicinctum (von Martens), which to some extent possesses 

 this attribute, in the complete absence of all signs of spines on 

 the canal. The specimen, although perhaps not quite full 

 grown, is yet in very good condition for diagnosis. It has all 

 the appearance of molluscs procured from abysmal depths, 

 and this was noted as having been obtained by dredging off 

 the south shores of New Guinea in the Torres Straits, at 

 a depth of seventeen fathoms. It forms part of the Chol- 

 mondeley collection, now in the museum, Owens College, 

 Manchester, and is at present the only specimen known. 



