342 BIILLA. 



This species may prove the same as the earlier described B. rufo- 

 labris. It is smaller and much solider than B. nebulosa, with the 

 apical umbilicus wider and strongly grooved spirally within. The 

 external sculpture of close microscopic wavy striae is also character- 

 istic. 



It is not perfectly clear what Menke intended to indicate by his 

 B. adamsi. He expressly states that it has no spiral striation, and 

 he says that it is the B. australis of Adams (see pi. 35, figs. 15, 

 16, copies of Adams' figures), not australis Quoy. Now Adams' 

 figures show none of the dark and white dotting so characteristic of 

 this west coast species, and are certainly different ; and as Menke's 

 description certainly does not apply well to the species under con- 

 sideration, the name adamsi has better be dropped from the list of 

 We$ American Bullas. 



Angas reports B. punctulata from Port Jackson and New Caledo- 

 nia (P. Z. S. 1867, p. 226). A tray of Australian specimens before 

 me, sent by Dr. J. C. Cox, show no variation whatever from the 

 many specimens before me from Panama, Mazatlan and Cape St. 

 Lucas. 



B. punctata (A. Ad. MS.) Sowerby (Conch. Icon. f. 15) seems to 

 me only a large form of B. punctulata. In any case the name cannot 

 be used, being preoccupied. Sowerby's figures are copied on pi. 37, 

 figs. 40, 41, and his description is as follows: Shell ovate-ventricose, 

 solid, smooth, slightly narrowed posteriorly, reddish-grey, clouded 

 with brown, sprinkled with small spots, posterior end obtuse, sides 

 rather compressed, umbilicus large, columella thick, rather straight, 

 outer lip thinly expanded. While the form is like that of Bulla 

 eruentata, the markings of this shell resemble those of B. aspersa, 

 which is more tapering towards the upper end. (Sowb.}. 



Bulla quoyi of A. Adams (pi. 34, fig. 9) is probably a synonym 

 of B. punctulata or B. aspersa. At all events, it is certainly not 

 the true quoyi of Gray. 



B. RUFOLABRIS A. Adams. PI. 37, figs. 47, 48. 



Shell elongately cylindrical, solid, opaque, longitudinally grooved ; 

 reddish, painted with dark ash-colored spots, dotted with white ; lip 

 rather straight, bent in in the middle, the margin of a red color. 



Galapagos Is., 6 fms. (Cuming). 



