140 DR. GWYN JEFFREYS ON THE MOLLUSCA OF THE [Feb. 19, 



propose. I much regret that I was the cause of his having been 

 misled in the first instance. 



t 18. Scalaria formosissima 1 , Jeffreys. (Plate X. fig. 10.) 



Shell slender, exceedingly thin and of a delicate texture, nearly 

 transparent, and rather glossy : sculpture, numerous crowded and 

 slight, obliquely flexuous ribs (40-50 on the body-whorl), which 

 are regularly and closely decussated by thread-like spiral strise, causing 

 the whole surface of the shell to appear shagreened or roughened by 

 a file ; the four uppermost or apical whorls are obliquely and closely 

 striated lengthwise but not spirally ; the base and int'rasuturai portion 

 of each whorl is more or less distinctly keeled : colour milk-white ; 

 apical whorls reddish-brown : spire elegantly and gradually tapering ; 

 apex sharply pointed : whorls 12, convex, but angular on the upper 

 part of each: suture very deep : mouth roundish, angulated below : 

 outer lip very thin : inner lip expanded and somewhat inflected : 

 umbilicus small and narrow, but conspicuous. L. 0"6. B. 02. 



' Porcupine ' Exp. 1870 : Atl. St. 16, 1 la. One lovely specimen, 

 now figured, and a few others more or less perfect, but much smaller. 



Distribution. Josephine Bank (' Josephine ' Exp.), Azores 

 ('Talisman" Exp. 1883); 340-1514^ fms. 



The shell is so very delicate and almost transparent that the 

 purple dye which was emitted by the animal is clearly visible 

 through one of my specimens. 



The imperfect and unsatisfactory notice given by the Marquis de 

 Monterosato of his 5. striatissima may apply to the present species 

 or to S. alyeriuna. If the first-named species were the same as 

 this, I should have been glad to adopt ihe name which he proposed 

 in spite of striatissima not being a classical word ; but the author, 

 although an old friend, has not shown the usual courtesy of comply- 

 ing with my repeated request to be allowed to see a specimen of several 

 Mediterranean species which he has merely named, without properly 

 describing any of them. Such names must therefore be treated as 

 manuscript. 



19. Scalaria pumicea, Brocchi. 



Turbo pumiceus, Brc. Conch, foss. Subap. ii. p. 380, t. vii. f. 3. 

 S. serrata, Calcara, Conch, foss. d'Altavilla, p. 47, t ii. f. 4. 

 ' Porcupine' Exp. 1870 : Atl. St. Gibraltar B. 

 Distribution. Sicily, Algeria, Madeira, and Canaries. 

 Fossil. Miocene : Vienna and Bordeaux Basins. Pliocene : 

 Coralline Crag and Italy. 



S. varicosa of Lamarck and other synonyms of palaeontologists. 



20. Scalaria hellenica, Forbes. 



S. hellenica, Forb. Rep. Mg. Inv. (1844), p. 189. 



Bissoal coronata (Scacchi), Philippi, Moll. Sic. ii. (184-1), 

 p. 127, t. xxiii. f. 7. 



•Porcupine' Exp. 1870: Atl. St. 30; Med. 15, Basel Amoush, 

 off Rinaldo's Chair. 



1 Most beautiful. 



