512 BULLIDiE. 



The animal has been described by Dr. Johnston, and we 

 fignre it from a sketch by Mr. Alder. It is white, short 

 and oblong. Its capital lobe is truncate in front, and 

 terminates posteriorly in two triangular reflected tentacula 

 at the frontal bases of which are the immersed eyes. The 

 foot is entire, truncate anteriorly, rounded behind. 



It is distributed everywhere around our shores, inhabit- 

 ing the laminarian zone. It ranges from Norway to the 

 Mediterranean, and dates from the coralline crag epoch. 



C. OBTUSA, Montagu. 



Small, not sulcated posteriorly : spire visible, more or less 

 raised ; the apex blunt, but not mammillary ; pillar not plici- 

 form. 



Plate CXI V. c. fig. 1,2,3. 



Walker, Test. Minut. f. Gl. 

 Bulla obiiisa, Mont. Test. Brit. vol. i. p. 223, pi. 7, f. 3. — Maton and Rack. 

 Trans. Linn. Soc. vol. viii. p. 128. — Rack. Dorset Catalog. 

 p. 44, pi. 18, f. 14.— TuRT. Conch. Diction, p. 23.— Fleming, 

 Brit. Animals, p. 293. — Brit. Marine Conch, p. 142. — Dillw. 

 Recent Shells, vol. i. p. 497. — Wood, Index Testaceolog. 

 pi. 18, f. GO.— Menke, Zoitschr. Malakoz. 1844, p. 149. 

 „ Jeveretisis, Schrot. Wiedmann Archiv. Zool. u Zoot. vol. iv. pt. 1 (1804), 

 p. 16 (teste Menke). 

 Utriculus ohtusus. Brown, Illust. Conch. G. B. p. 58, pi. 19, f. 5, 6. 

 „ discors. Brown, Illust. Conch. G. B. p. 58, pi. 19, f. 3, 4. 

 „ ])licatus. Brown, Illust. Conch. G. B. p. 58, pi. 19, f. 1, 2, probably. 



This abundant species chiefly varies in the greater or 

 lesser elongation of its shape, and the corresponding height 

 of its spire. It is small, moderately strong, subcylindrical, 

 rarely, if ever, very narrow, of an uniform whitish or pale 

 fulvous tint, usually dull-surfaced and opaque, and merely 

 wrinkled (at times somewhat coarsely) by the lines of 

 growth. The body, which is a little dilated and somewhat 

 more ventricose below, does not taper above, but is more 

 or less contracted in the middle, and surmounted by a 



