350 Appendix. 



Pleurotoma, Lam. [p. 183]. 



TERES, Bucq., Dautz. et Dollf., 1883. Shell small, columella 

 straight and thin, lip thin, spire and aperture both long. PL 

 anceps, Eiehw. Intended to include a number of small forms 

 heretofore classed with Drillia. 



BELLARDiA, Bucq., Dautz. et Dollf., 1883. Shell small, lanceo- 

 late, with sutural sinus, lip and columella thin ; oblique ribbed 

 and coronate. F. gracile, Mont. Europe. 



( Mangilia.) 

 MANGiLiELLA, Bucq., Dautz. et Dollf., 1883. Shell more 

 lanceolate than Mangilia, more fusiform, with oblique ribs. 

 Intermediate between Mangilia and Raphitoma. M. multir 

 lineata, Desh. Mediterranean. 



(Beta.) 



H^DROPLEURA, Monterosato, 1883. Shell operculate, not turric- 

 nlated, strongly ribbed. B. septangulare, Mont. Mediterra- 

 nean. (Bela is restricted to the boreal turriculated species, of 

 light texture.) 



DONOVANiA, Bucq., Dautz. et Dollf, 1883. Instead of Lachesis, 

 Risso, 1826, preoccupied by Daudin, 1804 (Reptiles), and 

 Savigny (Arachnids). Nessea, Risso, which, is synonymous with 

 Lachesis, is also preoccupied by Lamarck (Polj'^pes) and Leach 

 (Crustaceans). 



Cassis, Lam. [p. 200]. 



Brugnonia pulchella^ Jeffreys, is perhaps the fry of Cassis 

 sulcosa. — Ann. Mag. N. Hist., xii, 61, 1883. 



Natica, Lam. [p. 204]. 



PAYRATJDEAUTiA, Bucq., Dautz. et Dollf., 1883. Characterized 

 by three umbilical grooves, the subcentral one large, separated 

 by two plications. Operculum corneous. N. intricata, Donovan. 

 Mediterranean. 



Sc^voGTRA, Whitfield, 18'7'I. 



Distr. — 3 sp. Fossil. L. Magn. Limestone; Wisconsin. 

 S. Swezyei, Whitfield. 



Shell thin, sinistral, spire more or less elevated, of rounded 

 volutions; umbilicus broad, open; peristome entire, uniting 

 with the preceding volution on the inner side, and more or less 

 spreading or trumpet-shaped externally. Appears to be related 

 to the family Naticidae. 



Lyosoma, White, 1883. 

 Distr. — 2 sp. Jurassic ; Utah. L. phaseolaris, White. 

 Shell resembling certain forms of Neritina and Nerita in 



