Turbo Linné. 



i. Turbo petJwlatus Linné. 



Linné. Syst. Nat. Ed. X, p. 762, N° 533. 



RUMI'II. Amb. Rariteitkamer, p. 71, PI. 19, fig. D. 



REEVE. Conch. Ie. Vol. IV, Turbo, fig. 12. 



KlENER. Coq. Viv. Turbo, p. 50, PI. 24, fig. 1. 



Tryon. Man. of Conch. Vol. X, Turbo, p. 193, PI. 40, fig. 14. 



Stat. 53. Bay of Xangamessi, Sumba. Up to 36 M., coral sand. 1 Spec. 

 Stat. 240. Banda. 9 — 45 M., black sand. 2 Spec. 



The "Siboga"-specimens are very young and display two characters, which often want 

 in museum-specimens, and as far as I know, are not recorded by authors, namely : 1" that the 

 whole shell is covered by microscopic striae, running nearly spirally, but in an oblique direction 

 from behind and above towards the aperture, 2 that the embryonic whorls are quite different 

 from the rest of the shell, showing at the suture short projections which render it angular, as 

 if the embryonic shell should have been spined, moreover these whorls are plicated, and have 

 near the middle of their upper surface, a kind of keel, which is elegantly beaded, the uppermost 

 whorl is slightly immersed. 



2. Turbo (Senectus) sparverius Gmelin. 



Gmelin. Syst. Nat. Ed. XIII, p. 3594. 



REEVE. Conch. Ie. Vol. IV, Turbo, fig. 30. 



KlENER. Coq. Viv. Turbo, p. 49, PI. 21, fig. 1 [margaritaceus). 



TRYON. Man. of Conch. Vol. X, p. 194, PI. 47, fig. 26. 



Stat. 81. Pulu Sebangkatan, Borneo-bank. 34 M., coral bottom and Lithothamnion. 1 Spec. 

 Stat. 90. i°i7'.5N., u8°53'E. 281 M., coral, sand and stones. 1 Spec. 

 Stat. 131. Beo, Karakelang-islands. 13 M., mud and sand. 3 Spec. 



The specimens from Stat. Si and 90 are very young; consequently their identification 

 remains somewhat uncertain. It seems strange that the specimen from Stat. 90, should have 

 lived at this depth; it may have entered the dredge with a drifting piece of wood or seaweed. 



3. Turbo (Senectus) aurantius Kiener. 



KlENER. Coq. Viv. Turbo, p. 55, PI. 27, fig. 3. 



TRYON. Man. of Conch. Vol. X, p. 198, PI. 48, fig. 30 [argyrostoiuus var.). 



Stat. 58. Seba, Savu. Up to 27 M., sand. 1 Spec. 



The only specimen is unfortunately very young, measuring only 17 Mill. in altitude, while 

 Kii.ner's type is 43 Mill. The operculum and soft parts wanting. I cannot agree, without new 

 material, with Tryon's views, who has considered this species to be a variety of T. argyrostoiuus. 

 The habitat was unknown to Kiener and Tryon. 



23 



