OF SOUTHERN INDIA. 229 
The existence of transverse ribs and the thickened margins of the aperture 
generally serve as a good distinction between the species of this and the previous 
family. The species of the Scazzp# live in all waters, but are more numerous 
within the tropics, than in the temperate zones. 
The following genera are at present known :— 
1. Funis, Seeley, 1861 (Ann. Mag. Nat. Hist. 3rd Ser. VII, p. 285). 
Shell turreted, thin; whorls ornamented with transverse laminar ribbings and 
usually also with spiral strie, so as to produce a cancellated surface ; aperture ovate, 
with thin margins, anteriorly sub-effuse. 
This genus is based upon a form intermediate between the TvrerrertipZ” 
and the Scazz#; it has the thinness of the shell and the spiral striation of 
the former, and the laminar transverse ribs of the latter. The transversal 
ornamentation appears to be, however, the more important distinction between 
the two families, because it is connected with an expansion of the edges of 
the mantle, and on that account it seems more appropriate to place Fuwnis in 
the Scazipz. 
Mr. Seeley describes two new species, Funis elongatus and ? Funis brevis 
(loc. cit., p. 285, pl. 11, fig. 7, and p. 286, pl. 11, fig. 8), which latter species does not 
appear to differ essentially from the former. The presumed Rostellaria elongata, 
Sow. (Trans. Geol. Soc., Lond., 2nd Ser. IV, pl. 11, fig. 16,) could possibly be 
another cretaceous species of Funis. Of other shells, which most likely belong to 
this genus, we could only quote the Turritella crispula, Sandberger, (Conch. des 
Mainzer Beckens, 1863, p. 117, pl. 12, fig. 3), which was found in a marine 
sand of the Mayence basin. 
2. Crossea, Adams, 1865 (Ann. Mag. Nat. Hist. XV, p. 323); shell turbdinate, 
umbilicated, white; whorls convex, cancellated, simple or with varices; aperture 
roundish, anteriorly angular, somewhat produced and canaliculated ; umbilicus sui 
rounded and narrowed by a callus. The two species, C. miranda and bellula, were 
procured in the Japan seas, in 64 fathoms, near the Gotto Islands. The cancellated 
Structure of the shell evidently recalls the ornamentation of Funis. 
3. (Amcea), H. and A. Adams, 1853 (Gen. I, p. 228, non Acmea, Escholtz, 
1833) ; shell thin, when young only spirally striated, like Turritella, the last whorls 
with some transverse ribs ; columella tortuous ; aperture roundish as in Scala, but 
with thinner margms. 
4, Acirsa, Moerch, 1858 (H. and A. Adams’ Gen. II, p. 621); shell thin, 
varices obsolete, outer lip thin, simple. 
5. Acrilla, Adams, 1860 (Proc. Zool. Soc., Lond., XXVII, p. 241); shell 
moderately thick, with very numerous, equal, transverse ribbings, basis distinctly 
keeled at the periphery, outer lip thin. The type is Ae. (Scal.) acuminata, Sowerby, 
and the two other species de. (Chem.) grandis, Adams and Reeve, and Acrilla 
gracilis, Adams. 
6. Cirsotrema, Moerch, 1853 (H. and A. Adams’ Gen. I, p. 223); surface cane 
cellated; with few, far distant, strong varices. 
3 L 
