394 THE VOYAGE OF H.M.S. CHALLENGER. 



July 29, 1.S74. Levuka, Fiji. 12 fathoms. 



Habitat. — From the Eed Sea (Issel) and Africa to the Malay Archipelago and Poly- 

 nesia (v. Martens) ; also the West Indies (d'Orb.). 



I give Triton antillarum, d'Orb., as a synonym on the authority of Professor v. Martens, who 

 adds that Triton albocingulatum, Desh., is doubtfully distinguishable from Lamarck's species. 



7. Triton (Gutturnium) elongatus, Reeve. 



Triton elongatus, Reeve, Proc.'Zool. Soc. Lond., 1844, p. 117. 

 „ „ Reeve, Conch. Icon., vol. ii. pi. xv. p. 59. 



„ ,, Kobelt, Jahrb. malak. Gesellsch, 1878, p. 363, sp. 71. 



Kobelt, Conch. Cab. (ed. Kiister), p. 208, sp. 49, pi. lviii. fig. 9. 

 „ (Gutturnium) vcspaceus, var., Tryon, Manual, vol. iii. p. 22, pi. xii. fig. 96. 



July 21, 1874. Reefs off Tongatabu. 

 Habitat. — Philippines (Reeve). 



Mr Tryon puts this species as well as Triton gracilis, Keeve, under Triton vespaceus, Lam., but 

 he can hardly have had true specimens of the species before him when he formed this opinion. The 

 distribution of the whole genus is so very remarkable that it is a pity to bring confusion into the 

 study of this point by errors of identification. In the Shuttleworth Collection at Berne there are 

 sixteen specimens bearing this name, including two different species, but none of them is Triton 

 elongatus, Eeeve. 



8. Triton {Gutturnium) gracilis, Reeve. 



Triton gracilis, Reeve, Proc. Zool. Soc. Lond., 1844, p. 117. 



,, „ Reeve, Conch. Icon., vol. ii. pi. xv. fig. 58. 



Tritonium (Gutturnium) gracile, Brazier, " Chevert " Exped. Shells, Proc. Linn. Soc. New South 



Wales, 1877, vol. i. p. 173, No. 18. 

 Triton gracilis, Kobelt, Jahrb. malak. Gesellsch., 1878, p. 363, sp. 72. 



„ „ Kobelt, Conch. Cab. (ed. Kiister), p. 243, pi. lxvii. fig. 5. 



„ (Gutturnium) vespaceus, var., Tryon, Manual, vol. iii. p. 22, pi. xii. fig. 97. 



Station 212. January 30, 1875. Lat 6 C 54' N., loug. 122° 18' E. Off Malanipa. 

 Basilan Strait, Philippines. 10 to 20 fathoms. Sand. 



Habitat. — North-east Australia, 14 to 30 fathoms (Brazier); Philippines (British 

 Museum). 



