BULLA. Panama Shells. 215 



Habitat — Panama ; 0. B. A. ! 

 2 specimens were found. 



320. Bulla (Cyliclina) luticola. Nor. sp. 



Shell subcylindric, wider anteriorly : pale horn color, sub- 

 transparent : with the striae of growth very minute : apex in a 

 deep narrow umbilicus, which is partly covered by the upper 

 part of the labrum : last whorl compressed around the middle : 

 aperture rising higher than the umbilicus, linear above, subor- 

 bicular below : labrum very thin, much advanced along the 

 middle : columella thickened with a callus : anterior lunbUical 

 region indented, partly covered with a deposit. 



Length .2 inch ; breadth .095 inch. 



Station. — This species was found crawling on liquid mud, 

 near low water mark, at the bottom of a steep sand beach. 



Habitat. — Panama ; C. B. A. I 



28 specimens were collected half a mile east of Panama. 



321. Bulla punctulata. 



Synonymy. 



Bulla punctata Ad. in Sowb. Thes. Conch, p. 5l1. No. 53. 



pi. 123. {.11. - - - - 1849. 

 punctulata Ad. in Sowb. Thes. Conch. Index, 1849. 



Station. — Sandy mud, 10 fathoms ; Cuming ! A. Adams. 



Habitat. — ^Panama ; Cuming I A. Adams. 



Acapuloo ; E. Jewett 1 Gould MSS. 



Taboga; C. B. A. 1 

 25 specimens were found in various states of preservation. 



322, Bulla . Sp. indet. 



Another species is represented by 1 imperfect specimen. 



