812 MK. E. A. SMITH ON MARINE SHELLS [Nov. 5, 



Urate within. The present species is remarkable for the great 

 convexity of the whorls, and the fiueness of the spiral scaly lirse. 

 The aperture also is unusually short in proportion to the whole length ; 

 and the lirse within are very fine, and produced as far as the eye can 

 trace inwards. 



36. SlSTRTJM MARGARITICOLA, BlUguieie. 



Hab. Singapore ; Lord Hood's Island ; Natal. 



37. Latirus decoratus, A. Adams, P. Z. S. 1854, p. 316; 

 Kuster, Con. Cab. Ad. 2, pi. 25. figs. 12, 13 (as Turbinella). 

 (Plate L. fig. 11.) 



Hab. New Zealand {Adams). 



The Andaman variety of this species has the longitudinal costse 

 much thicker, and consequently fewer in a whorl, than the New- 

 Zealand form ; and the colour is a little different. The general tint is 

 whitish with a blush of rose, the two granulous lirse beneath the 

 suture light brown, interstices between the costse dark brown, the 

 body-whorl with a rose-coloured band bordered on each side by a 

 white liration around the middle, the tip of the canal blackish, the 

 columella and outer lip pinkish, and the apex of the spire pink. The 

 colour of this species ("alba castaneo varie picta") given by Adams 

 does not at all describe the variety of painting. There are two speci- 

 mens in the Cumingian collection, both pinkish white with a rosy 

 apex and a pinkish aperture ; and one, probably the type, has the dark 

 brown tip to the canal. The shell figured in the Conchylien-Cabinet 

 is larger than the type or the Andaman specimens. The former is 

 18 mill, long, 1 7 in diameter, and the largest of the latter 20 in length 

 and 8 in width. 



35. Latirus fastigium (Reeve). (Plate L. fig. 12.) 



Turbinella fastigiwn, Reeve, Couch. Ic. iv. figs. 72 a, b. 



Hab. Ceylon. 



Of this species the British Museum possesses three specimens — 

 one from Ceylon, the type (the habitat of which is unknown), and the 

 third presented by Capt.Wilmer, from the Andaman Islands. Two of 

 them have six longitudinal costae, whilst the type has only five. The 

 latter is an immature shell ; and consequently the figure of it in the 

 'Conchologia Iconica' does not convey a true idea of the aperture in 

 the adult. When perfect the canal is a little longer and the columella 

 is covered with a callosity, the edge of which is produced, and at the 

 base of the shell forms an umbilical fissure. 



Reeve does not mention that one or two of the spiral lirse just be- 

 neath the suture are conspicuously scabrous ; nor does he point out 

 that 4 or 5 of them around the cauda of the body-whorl are also 

 scabrous and thicker than the rest, which are frequently alternately 

 coarser and finer. The plaits on the columella are somewhat in- 

 distinct and about five in number ; and the aperture is finely lirated 

 within, the lirse terminating at some distance from the margin of the 

 labrum. 



