174 MAZATLAN UNIVALVES 



cus appears sliglitly denticulate within, from the striae of 

 growth being there well marked. The labrum extends '005 

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

 JIab. Mazatlan ; 2 sp. on Spondylus calcifer ; Lpool Col. 

 Tablet 791 contains the larger specimen, slightly 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. 

 Hab. Mazatlan ; on Spondylus calcifer ; Lpool Col. 



GENUS HAMIKEA, Leach. 

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



229. HAMINEA CYMBIFOEMIS, n. s. 



H. t. tenuissimd, albidd, axi contort a, maxime inflatd, spird 

 minore, celatd ; aperturd antice ventricosd, postice productd ; 

 striulis spiralibus creberrimis ornatd, rugis incrementi subex- 

 tantibus ; labio 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 ; Lpool Col. 



Tablet 793 contains the specimen. 



SUB-CLASS PTJLMONATA. 



OEDEE GEOPHILA. 

 FAMILY TESTACELLIILE. 

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



GENUS GLANDINA, Sckum. 



Essai Syst. p. 202, 1817. 



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

 Cochlicopa a, Ferus. Tab. Syst. 1821. 

 Achatina, pars, auct. 



