TRIPTEEID^. 23 



Fam. II. TRIPTERIDiE. 



Body elongate, cylindrical, divided into two distinct parts ; the front 



part with two large lateral wings, united below to a flat central 



portion; the abdominal part cylindrical. 

 Shell cylindrical or subangular near the month, ending in an acute 



point, separated from the anterior cavity by an entire transverse 



septum; the tip is often deciduous in the adult. 



Cuvieridae, Gray, Syn. Brit. Mus. 1840; Proc. Zool. Soc. 1848, 



204 ; Agassiz, Nomencl. 

 Hyalaeidae (part), Cantraine, Moll. Medit. 31, 1841. 

 Hyalidffi (part), UOrh. Moll. Cuba, i. 70, 89, 1841. 

 " Intermediate between Cleodora and Pneumodermon," UOrh. Cuba^ 



89. 



1. TRIPTEKA. 



Triptera (Triptere), Quoy Sr Gaim. Voy. Uranie, 416, 1824 (want- 

 ing the shell); Ann. Sci. Nat. 1825, vi. 76, t. 2; Blainv. Mai. 

 478. 



Cleodora c. Tripter, Rang, Man. 116, 1829; Poit. ^ Mich. Gal. 

 i. 45. 



Tripteris, Menke, Syn. ed. 2, 9, 1830, not Lesson. 



Tripteres, Gray, Syn. B. M. 1842, 92. 



Cuvieria (columnella). Rang, Ann. Sci. Nat. 1827,320; Isis, 1829, 

 319; Mon.Moll. 116, 1829 (not Decandolle nor Peron); Deshayes, 

 Ency. Meth. iii. 35, 1830; Lamk. Hist. ed. 2, vii. 430; Guerin, 

 Icon. Moll. ii. 1843; Bronn, Leth. 985, 1838; Sow. Gen. Shell. 

 t. ; Conch. Man. ed. 2, 130, 278, 1842; Menke, Syn. ed. 2, 9, 

 1830 ; Benson, Jour. Asiat. Soc. Bengal, 1835, 698 ; Cuvier, Reg. 

 Anim. ed. 2, 1830; Cantraine, Malac. Medit. 31, 1841; UOrh. 

 Moll. Cuba. i. 70, 89 ; Voy. Amer. Merid. 124 ; Desh. in Lamk. 

 Hist. ed. 2, vii. 435. 



Cleodora (obtusa), part, Quoy ^ Gaim. Voy. Uran. t. 6. 



Cresis (obtusa), part, Rang, Ann. Sci. Nat. xiii. 1828. 



1. Tripteea columnella. 



Body glossy, anteriorly yellow coloured ; wings oblong, anteriorly 

 orange coloured. Shell elongate, cylindrical, swollen posteriorly, 

 terminated anteriorly by an ovately transverse aperture, of a 

 glossy appearance. 



