438 MAZATLAN UNIVALVES 



546. ACLIS TUMENS, n. S. 



A. t. subdiaphana, nitidd, alia, inflata ; vertice nucleoso 

 r/iinuto, anfr. i. et dimidio, declwiter sito ; anfr. normalibus vL 

 valde tumentibus ; apertura rotundata, peritreinati continuo, 

 acuto ; labio rimulam umbilicalem monstrante. 



This species is more tuinid even than A. ascaris, from which 

 it differs in being smooth, with a minute apex. A specimen 

 from Java sand appears exactly like in all particulars ; though, 

 with so few characters to judge by in the shell, the animal may 

 be distinct. Long. *053, long. spir. '035, lat. "024, div. 27. 

 Sab. Mazatlan ; 1 sp. off Chama ; L'pool Col. ? Java, 



F. Archer. 



Tablet 2017 contains the specimen (slightly broken.) 



GENUS EULIJV1A, Eisso. 



547. EULIMA PHASTI.TA, Sow. 



Conch. 111. sp. 7, f. 10. Proc. Zool. Soc. 1834, p. 7. Lam. An. 



s. Vert., vol. viii., p. 451, no. 2.H. $ A. Ad. Gen. i. 236. 



Fragments were found of six specimens which may belong to 

 this species. The vertex is stout in proportion and rounded. 

 Hob. St. Elena, Cuming. ? Mazatlan ; extremely rare, off 



Spondylus and Chama ; L'pool Col, 



Tablet 2018 contains 2 (broken) specimens, 



548. EULIMA , sp. ind. (a.) 



Tablet 2019 contains an apical fragment of a species, much 

 smaller than Eu. hastata, with the apex not so stout or rounded. 

 Sab. Mazatlan ; extremely rare, on Spondylus ; Lpool Col. 



549. EULIMA , sp. ind. (b.) 



Tablet 2020 contains fragments of a species, somewhat 

 resembling Eu. acuta, Sow. (Proc. Zool. Soc. 1834, p. 8 ; Leios- 

 traca a., H. fy A. Ad. : non. Eu. acuta, A. Ad.) but appears 

 a genuine Eulima. It is remarkable for the extremely slight 

 divergence of the spire, though the whirls are not elongated. 

 Hab. Mazatlan ; extremely rare, on Chama and Spondylus ; 



L'pool Col. 



