PYREiXE. 185 



Genus pyrene, Bolten. 



Shell mitra- shaped, fusiform; spire equal to, or longer 

 than, the aperture, whorls tumid ; outer lip slightly gib- 

 bous above, contracted below, margin not inflected, 

 striated within; inner lip terminating in an elevated 

 ridge, but with the teeth obsolete. 



Syn. Conidea, Swains. 



Ex. P. semipunctata, Lamarck, pi, 19, fig. 8. Shell, 

 P. aui'ea. Martini, fig. 8, a. 



The animal of this genus, according to the observation 

 of one of the authors, bears the eyes about midway on 

 the outer side of the tentacles ; the shells are more or 

 less raitriform, and the outer lip is not gibbous in the 

 middle. 



Species of Pyrene. 



aspersa, Sow. ovulata, Lam. 



aurea, Mart. ovuloicles, C. B. Adams. 



concinua, Brod. rubicuudula, Quoy. 



lugubris, Kien. semipunctata, Lam. 



macrostoma, Anton. splendidula, Sow. 



marmorata, Gray. tringa, Lam. 



obscura, Son\ uudata, Duel. 



obtusa, Sow. zelina, Duel. 



Sub-gen. CONELLA, Swainson. 



Shell smooth, conic; aperture linear; inner lip smooth; outer 

 lip striated internally, not thickened in the middle. 



coniformis. Sow. Dupontii, Kien. 



dormitor, Sow. picata, Swains. 



dubia, Sow. Philippinarum, Reeve. 



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