1896.] NATURAL SCIENCES OF PHILADELPHIA. 433 



This species is notable for the yellowness of its paler parts and the 

 bright sienna brown of its darker portions. It is closely related to 

 B. calvus Sby., which is a smaller and more streaky shell. The 

 form figured by Reeve and Reibisch under this name is larger than 

 the true ustulatiis, and is considered by Dr. Stearns to be a banded 

 variety of B. mix. 



Balimalus (NaesiotuB) calvus Sowerby. 



Bulinus calvus Sby., P. Z. S., 1833, p. 72 (James Island) ; Conch. 111., p. 6, 

 fig. 41, 1833. 



Bulitnus calvus Desh. in Lam. An. s. Vert, ed. ii, vol. viii, p. 179, 1838; 

 Pfr., Mon, Hel. Viv., II, p. 225, 1848; Kuster, in Chemn. Conch. Cab., ed. 

 ii, Bulimus, t. 62, figs. 37, 38. 



Buliminus calvus Beck, Ind. Moll., p. 70, 1838. 



Btdimulus {Omphalostyla) clavus H. & A. Ad., Gen. Kec. Moll. II, p. 161, 

 1855. 



Bulimus calvus 'Reeve, Conch. Icon., pi. xx, fig. 126, 1848. 



Bulimulus [Nesiotes) calvus Martens in Albers, ed. ii, p. 221, 1860. 



Bulimulus {Ncvsioius) calvus Vh.,'^om. Hel. Viv., p. 254, 1881 ; Reibisch, 

 Isis, 1892, p. 6, t. i, fig. 8; Stearns, Proc.U. S. Nat. Mus., xvi, p. 427, 1893, 

 ex parte. 



James Island, Cuming ; Charles Island, U. S. Fish Commission, 

 Cuming and Wolf; Chatham Island, Kellett, 



Specimens sent under this name by Cuming and Reibisch agree 

 well with those collected by the U. S. Fish Commission. It is 

 closely related to B. ustulatm and is rather nearly approached by 

 certain dwarfish, unusually smooth specimens of B. rugulosus. B. 

 nueula Pfr. is also closely allied. 



Bulimulus (Naesiotus) nueula PfeifFer. 



Bulimus nueula Pfr., P. Z. S., 1852, p. 60 (Gal. Is.) ; Mon. Hel. Viv., Ill, 

 p. 415, 1853; IV, p. 475, 1859. 



Bulimus {Na-siotus) nueula Pfr., Mai. Blatt. II. Vers., p. 161, 1854. 



Bulimulus {Omphalostyla) tiucula H. & A. Ads., Gen. Kec. Moll., II, p. 161, 

 1855. 



Bulimulus [Nesiotes) nueula Martens, in Albers Heliceen, ed. ii, p. 221, 

 1860. 



Bulimulus (Mrsiotus) nueula Pfr., Nom. Hel. Viv., p 254, 1881 ; Eeibisch, 

 Isis, 1892, p. 3, t. i, fig. 2. 



Bulimulus {Ncesiotus) nux var. Stearns, Proc. U. S Nat. Mus., xvi, pp. 380, 

 426, 1893. 



Charles Island, Wolf, fide Reibisch ; Chatham Island near the 

 S.-W. end, at a height of 1,600 feet, Baur. 



A specimen submitted to Mr. Edgar A. Smith of the British 

 Museum, was said to be somewhat darker colored and more coarsely 

 striated than the type of nueula in that collection. These are, how- 

 ever, trivial difl^erences under the circumstances. It agrees closely 

 with a specimen sent by Reibisch under the name of nueula. It is 



