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



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

 inisled in the first instance. 



^18. ScALARiA formosissima', 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-.t0 on the body-whorl), which 

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

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

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

 striated lengthwise but not spirally ; the base and infrasutural 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 

 f)art of each : suture very deep : mouth roundish, angulated below : 

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

 vmbilicus small and narrow, but conspicuous. L. 0'6. B. 0"2. 



'Porcupine' Exp. 1870: Atl. St. If), 1 7a. 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 iS. strir/fissima may apply to the ])resent species 

 or to 8. alyeriana. 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 

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

 manuscri])t. 



1/19. Scalaria pumicea, Brocchi. 



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



S. serruta, 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. iEg. Inv. (1844), p. 189. 



Kissoal coronata (Scacclii), Philippi, Moll. Sic. ii. (18I-I), 

 J). 127, t. xxiii. f. 7. 



• Porcupine' Exp. 1870: Atl. St. 30 ; Med. 45, Basel Amousii, 

 off Rinaldo's Chair. 



• Most beautiful. 



