336 JOURNAL OF CONCHOI.OGY, VOL. I4, NO. II, JULY, I915. 



30.— 5. wrightianus Crosse. Journ. de Conchyl , 1872, vol. 20, p. 

 360, vol. 21, pi. 9, fig. I. 



(^=armaius Sow., Thes. Conch., 1848, vol. i., p. 424, 

 fig- 53 5 "ot arviatiis Goldfuss, fossil, Petr.efacta 

 Germanise, 1826-44, P- 96). 

 Hab. : Nichol's Bay, Australia. 



Group H. 

 31. — 6". coccinens Lamk. Anini. Sans Vert., vol. vi., p. 190. lUust. 

 Conchyl., pis. 14, 15 (not pi. 25, fig. 2). 

 Hab. : American and Indian Seas (Chenu). 



The type of this species was in the " Dufresne " Collection, which 

 has probably been dispersed and the types lost sight of. Lamarck 

 referred to three figures : the one in Gualt. Test., t. 99, fig. e, agrees 

 very well with those figured by Chenu ; the second, fig. f, is difficult 

 to identify ; and the third, in D'Argenville Conch., t. 19, fig. E, might 

 possibly be a 6*. gatderopiis. The coccinens of Sow. and Reeve, in Thes. 

 Conch., fig. 47, and Conch. Icon., fig. 44, are varieties of hystryx 

 Bolten. 



32. — S. niicrokpos Lamk. Anim. Sans Vert., vi., p. 192. Thes. 

 Conch., fig. 46, Conch. Icon., figs. 65a and b. 

 Hab. : China (Sow.). 

 33. — S. gilviis Reeve. Conch. Icon., pi. 11, fig. 38. 



Hab. : Guadaloupe. 

 34. — 6'. erinacais Reeve. Conch. Icon,, pi. ii, fig. 39. 



Hab. : West Indies. 

 35. — S. ictericiis Reeve. Conch. Icon., pi. 1 j, fig. 40, 



{==))ntltilameUatus Chenu (non Lamarck), Illust. 

 Conchyl., pi, i r, figs. 1, 2), 

 Hah. : Ijermuda. 



The ty{)e specimen is a very worn example of an e.xtremt-ly variable 

 species; the figures quoted above perhaps illustrate the limits. I have 

 examined a series that quite joins up those two figures. The spines 

 vary from shoit pointed to spathulate, and the number of principal 

 ridges varies from four (as in Reeve's figure) to eight or nine. 

 36. — ^. electus Fulton, n.sp. 



Shell pectiniform, moderately thick, upper valve purple brown, 

 variegated with whitish, very finely longitudinally ridged, the 

 ridges bearing short spines and scales, mostly on the posterior 

 area ; lower valve orange-red at area of attachment, the free 

 anterior portion of a greyish colour, with numerous close-set 

 ridges, bearing short spines ; ligamental area produced ; interior 

 white, with a broad purple-brown margin. 



