26 ZOOLOGY OF THE VOYAGE OF THE SULPHUE. 



98. Mangelia coronata, Hinds, 1. c. p. 45, (Plate IX. fig. 2.) Testa, attenuata, acuminata; 

 anfractibus senis, plico-costulatis, transversim striatis ; costulis superne subacuminatis ; faucibus 

 laevibus. 



Inhab. Straits of Macassar. 



99. Mangelia vittata, Hinds, 1. c. p. 45, (Plate IX. fig. 3.) Testa, attenuata, pallida, fusco 

 fasciata; anfractibus senis, plico-costulatis, transversim striatis; costulis numerosis ; faucibus cre- 

 nulatis. 



Inhab. Straits of Macassar. From ten fathoms, coarse sand. 



100. Mangelia oriza, Hinds, 1. c. p. 46, (Plate IX. fig. 4.) Testa attenuata, acuminata, laevi- 

 gata, nitida, hexagone plico-costulata ; anfractibus septenis ; faucibus laevibus. 



Inhab. North coast of New Guinea. From twenty-two fathoms, mud. 



101. Mangelia celebensis, Hinds, 1. c. p. 46, (Plate IX. fig. 5.) Testa attenuata, laevigata, 

 pallida, fusco late fasciata; anfractibus senis, plico-costulatis; costulis subdistantibus ; faucibus 

 crenulatis. 



Inhab. Straits of Macassar. From ten fathoms, mud. 



Defrancia. Millet. 



Such a vast number of species has of late poured in upon Pleurotoma, as left 

 by Lamarck, that it is in the predicament of some of the Linnasan genera, which in 

 time became swelled into families ; and it is in this light that I now regard it. 

 Pleurotomacete holds a somewhat analagous situation to what Composite does in 

 Botany ; as we extend our knowledge, it will unquestionably embrace a multitude 

 of species, but unlike the latter, it stands greatly in need of a careful and judi- 

 cious breaking up into generic groups. Among a few which have been as yet pro- 

 posed, Defrancia is perhaps the happiest, as it separates several species which 

 have very little affinity with Pleurotoma, and one of which has been placed in 

 Buccinum, B. Cumiugii. 



102. Defrancia linearis. 



Pleurotoma linearis. De Blainville, — Kiener, Icon. pi. 25, fig. 4. 

 Inhab. New Guinea. 



103. Defrancia philippinensis. 



Pleurotoma philippinensis, Reeve, Proceed. Zool. Soc. 1843, p. 184. 



Inhab. Straits of Macassar. In eleven fathoms, coarse sand. 



