174 MAZATIAN UNIVALVES 



ous appears slightly denticulate within, fronl the strife of 

 growth being there well marked. The labrum extends 005 

 beyond the spire. Long. ' 125, lat. "055. 

 Hab. — Mazatlan ; 2 sp. on Spondylus calcifer ; L'pool Col. 

 Tablet 791 contains the larger specimen, sUghtly imperfect. 



228. Bulla , sp. ind. 



Tablet 792 contains a small fragment, remarkable for the 

 sharp angle round the spiral umbilicus. This is furnished 

 within with spiral grooves so strongly marked as to cause the 

 produced labrum to be serrated on the outer side at its junc- 

 tion with the body whirl. 



JSab. — Mazatlan ; on Spondylus calcifer ; Upool Col. 



Genus HAMINEA, Leach. 

 Bulla (pars) auct. Shell horny, elastic, colourless, semi-interna. 



229. Haminea cymbifobmis, n. s. 



jff. t. tenuissimd, albida, axi contorfd, maxime inflatd, spird 

 minore, celatd ; aperturd antice vcntricosd, postice productd ; 

 striuUs spiralibus crebet-rimis omatd, rugis incrementi subex- 

 tantibus ; labia tenuissimo. 



Only one rather imperfect specimen was found of this 

 beautiful species, which resembles in form a small inflated 

 Cymbium. Long. '07, lat. '05. 



Hab. — Mazatlan ; 1 sp. on Spondylus calcifer ; L'pool Col. 



Tablet 793 contains the specimen. 



• 



Sub-class PULMONATA. 

 Okdee GEOPHILA. 

 Family TESTACELLID^. 

 Gray in B. M. Cat. Pulm. p. 9. 



Genus GLANDINA, Sckum. 



Essai Syst. p. 202, 1817. 



Oleacina, Bolten, Mus. (1798) ; ed. 2, 1819, p. 77. 

 Cochlicopa a, Ferns. Tab. Syst. 1821. 

 Achatina, pars, auct. 



