128 32 



Distribution:— Persian Gulf, Gulf of Aden, Madagascar (Voeltzkow). — 

 Philippines, China (Hongkong, Shanghai), North Aifstralia, Torres Strait, Tasmania (?). 



Area (CucuUaea) concamerata, Mart. 



Area concamerata. Martini, Beschaff, d. lieilin. Gesellsch. Naturf. Kreunde, III, 1777, p. 292, pi. VII, figs. 

 l.'j-Ki. 



— cucuUata, — Conchyl. Cabin., VII, p. 174, pi. 53, figs. 526-28. 



— Cucullus, Gmki.., Syst. Nat., ed. XIII, p. 3311, No. 23. 

 CucuUœa auricuUfera, Lamarck, Anim. s. vert., éd. 2, VI, p. 454. 



— concamerata, Martini, Reeve, Conch, icon., XVII, Cnculkea, .Sp. 1. 



CucuUaea — — Martini u. Chemnitz, Conchyl. Cabin., VIII, 2 Abtli., p. 5, pi. 1, figs. 3— 4; 



pi. 5, figs. 1—2. 

 Cucullœa — — Lamy, Journ. de Conchyl., vol.55, 1907, p. 30G. 



Cucullœa granulosa, Jonas, Proc. Zool. Soc. London, XIV, 1846, p. 34. 



— — Reeve, Conch, icon., XVII, Cucullwa, .Sp. 2. 



— — Lamy, Bull, du Mus. d'Hist. Nat. Paris, 1904, p. 278. — Journ. de Concliyl., vol. 55, 

 1907, p. 306. 



Ivoh Lan, 30 fathoms, mud (1). Koh Chuen, 10—30 fathoms (2'/3). Between 

 Koh Chuen and Koh Chang, 15 fathoms, mud (4). S. of Koh Samit, 14-18 fathoms ('/a). 

 Between Koh Kut and Koh Kahdat, 10 fathoms, shells (2). E. of Koh Mak, 20 

 fathoms, mud (1). 



The Gulf of Siam, on the west coast of Cambodge (H. Crosse & P. Fischer, 

 C. granulosa, Jon.). ' 



Long. 4—92 mm. 



Distribution: — Singapore, Mergui Archip., Nicobars, Madras, Tranquebar, 

 Ceylon, Persian Gulf, Gulf of Aden, Red Sea (subfossil), Seychelles. — China, For- 

 mosa, Japan (Nagasaki), Torres Strait, New Caledonia. 



I have specimens at hand from the Gulf of Slam which, with respect to the 

 number of the outer lateral teeth agree entirely with the description of CucuUaea 

 granulosa, Jonas (Reeve). The number of the teeth in the latter form is, however, 

 quite unreliable as a distinguishing mark, as the lateral teeth in at least the younger 

 individuals (e. g. in individuals measuring 65 mm. in length) pass into the rest of 

 the row of teeth without any interval or other separation. 



Pectunculus amboinensis, Gmel. 



Cardium amiwincnsc, Gmelin, Syst. Nat., ed. XIII, 1790, p. 3255, No. 43. 



Area pectunculus, Linné, part. Syst. Nat., ed. X, p. 695, No. 150. — ed. XII, p. 1142. No. 180. 



— — — Martini & Chemnitz, part., Conchyl. Cabin., Vll, p. 235, pi. 58, figs. 568-69. 



Pectunculus pcctiniformis, Lamauck, part. Hist. nat. d. anim. sans vert., VI, 1 part. 1819, p. 53, No. 16. — 



éd. 2. VI, 1835, p. 494, No. 16. 



— — — Reeve, Conchol. icon., I, Pectunculus, Sp. 11. 



— — — L. Morlet, Journ. de Conchyl., vol. 37, 1889, p. 163. 



— pectunculus, Linné, Edg. A. Smith, part., Proc. Zool. Soc. London, 1891, pp. 432— 33. 



> Journ. de Conchyl., vol. XL, 1892, p. 76. 



