OF CONCIIOLOGY, 267 



B. FUSIFORME, Conrad. — PI. 23, fig. 4. 



Fulgur fusiformis, Conrad. Bullet, of National Inst., p. 187. 

 Miocene Fossils, pi. 46, fig. o. 



SYCOTYPUS, Browne. 



S. EXCAVATUS, Conrad. — Pi. 23, fig. G. 



Fulgur excavatus, Conrad. Amer. Jour, of Science and Arts, 

 vol. xxxix. p. 387. Miocene Fossils, pi. 45, fig. 3. 



S. CORONATUS, Conrad. — PI. 24, fig. 1. 



Fulgur coronatus, Conrad. Bulletin of the National Institu- 

 tion, p. 187. Miocene Fossils, pi. 46, fig. 1. 



S. RUGOSUS, Conrad. — Pi. 24, fig. 4. 



Fulgur rugosus, Conrad. Proceed. Acad. Nat. Sciences, vol. 

 i. p. 307. Miocene Fossils, pi. 46, fig. 4. 



MEGANEMA, Conrad. 



This genus differs from Basi/eon in being without a trace of 

 tubercles or spines, and in having prominent regular ribs ; the 

 whorls are flattened on top, and slightly canaliculated. 



Proceed. Acad. Nat. Science, 1864, p. 212. 



LiROSOMA CURVIROSTRA. PI. 19, fig. 1. 



This shell was incorrectly referred to Lirosoma, which is more 

 like a Fasciolaria with a prominent plait and straight siphonal 

 canal, whilst M. curvirostra is nearly related to syeotypus and 

 lias a similar fold or groove on the columella. 



C^LATOCONUS, Conrad. 

 C. PROTRACTUS. — PI. 20, fiff. 6. 



Proceed. Acad. Nat. Science, 1862, p. 566. 



FASCIOLARID^ ? 

 LIROSOMA. 

 L. suLcosA.— PI. 23, fig. 3. 



Fusus sulcosus, Conrad. Journ. Acad. Nat. Sciences, vol. 

 vi. p. ^20, pi. 9, fig. 8. 



MYTILID^. 



MODIOLARIA, Beck. 

 M. VIRGINICA.— Pi. 22, fig. 3. 



Description. — Oblong, subarcuate, ventricose anterior side 



