12 ANOMA. 



der species, with distinctly, though very finely, striate spire. 

 It was received too late for figuring. Named in honor of 

 Prof. C. B. Adams. 



4. A. JARVISI Pilsbry, n. sp. PL 13, figs. 7, 8, 9. 



Shell imperf orate, cylindric-fusiform, moderately strong; 

 white, tessellated with olive-brown spots vertically placed in 

 pairs, the upper series of spots smaller ; the base and a stripe 

 behind the lip are blackish-brown, several upper whorls are 

 dusky in some specimens. The surface is glossy, nearly 

 smooth, showing some weak, fine strige and minute malleation 

 under a strong lens ; and on the latter part of the last whorl 

 the striation becomes distinct, though fine. The basal keel is 

 white, strong and compressed, rather long. The aperture is 

 small and subvertical. Peristome white on both face and 

 back, expanded, slightly reflexed, and obtuse, being a little 

 thickened. The outer lip is strongly sinuous, arching for- 

 ward above and retracted to the insertion. The columellar 

 lip is also arched forward, and at the insertion it is deeply 

 notched, the edge being narrowly turned over and adnate. 

 The columella in oblique view is obliquely truncate in some 

 shells, not perceptibly so in others. 



Length 19, diam. 5 mm., whorls 8% to 9. 



Length 18, diam. 4.8 mm., whorls 8%. 



Length 16.5, diam. 5.3 mm., whorls 8. 



St. Ann: " Outer Penitentiary," a " cockpit " near Aenon 

 Town (P. W. Jarvis). 



The imperforate axis, very sinuous lip, and the peculiar 

 color-pattern, readily distinguish this from A. tesselata and 

 other allied species of the group, having a white peristome 

 and blackish streaks behind its expansion. This elegant 

 species is named in honor of Mr. P. W. Jarvis, of Kingston. 



A single poor specimen from Mt. Diablo, sent by Mr. Jarvis, 

 is similar to A. jarvisi, but more slender, 17 x 3.7 mm. It has 

 lost most of the color, so the specific identity is uncertain. 



5. A. TESSELATA (C. B. Adams) . PL 17, figs. 1, 2, 3, 4, 5. 

 Stout fusiform, the upper half tapering rapidly to the 



