144 WORMS. TESTACEA. 33. Lepas. 



Shell about half an inch high, and lefs in diameter, generally di- 

 vided into 6 compartments by farrows which become broad to- 

 wards the top, where it fpreads into ^angular points, wrinkled or 

 ftriate longitudinally., fomelimes fraooth, white or purplish-red : 

 aperture large, the lid tranfverfe'ly ribbed. 



159. B. elongatus. Elongated, clavate, with 3 wide and 

 3 narrow compartments, wrinkled longitudinally, 

 faintly striate transversely. 



Sr. ZooL t. 37. f. 5. a. Donovan, t. 36. /. 3. 



Shell 2 inches long, 4 lines broad at the bafe* white, cylindrical* 

 cloven above the lid, with obtufe compartments. 



160. B. Tinlinnabulum* Conic, obtuse, with 3 raised com- 

 partments contracting to a point up ward sand longitu- 

 dinally striate, and 3 depressed-ones contracting to a 

 point downwards and transversely striate. 



Donovan t. 148. Barbut t. i. f> 6. 



Shell nearly a inches long, lefs in diameter, purplish varied with 

 white and red, angular : lid obtufe, of nearly equal valves. 



161. B. costatus Somewhat conic, with numerous equi- 

 distant ribs diverging from the aperture. 



Donovan Brit. Shells, i . tab, 30. f. z. 



Sfietltma.il, whitish, with about 18 ribs. 



162. B. conoides. Conic, smooth, finely reticulate, witk 

 pointed compartments : aperture very harrow. 



Donovan Brit. Shells, i. tab. 36. f. ^ 



Shell about. 4 lines wide, purplish; valves divided at top., and 

 pointed : aperture very fmall. 



163. B. intertextus. Slightly depressed, with interwoven 

 obliquely striate valves ; the margin at the base irre- 

 gularly serrate . 



Br.'Zool.\v.t. $%.f. \. Donovan t. 36. j". i. Lepas striatus. 



Shell hardly a quartet of an inch wide, white, strongly and 

 obliquely ribbed : aptrture oblique, clofed by the lid. 



16 i. B. Diadema. Somewhat compressed, with 6 promi- 

 nent longitudinally ribbed valve*, alternating with as 

 many depressed transversely striate ones. 



Donovan Shells t. 56. /. 1.2. Da Costa t. 17. /. 2. 2. 2. 



Shell an inch high, and about 2 wide, roundish, dirty-white, with 

 tranfverfe strias on the sides of the valves : aperture funnel-form, 

 6-sided within : bafe concave, furnished with divisions or cells in 

 a radiate manner. 



34. LEPAS. Bemade. 



165. L. anaiifera. With 5 valves, smooth; the dorsal* 

 valve rounded at the sides, and slightly carinate. 



Br. ZooL iv. t. 38. /. 9. Donov.t.j. Da Cost. t. \jf. 3. 



Shell an inch and a half long, bluish-white, comprefsed : valves 

 yellow at the margins, obfcurely ftriate ; the 2 larger-ones trian- 

 gular, the 2 top-ones about half the size, the dorfal-one long, 

 cuived, narrow,- rounded on the back, inclosing the others : fe- 

 duncle long, wrinkled and darker towards the shell. 



166. L. anserifera. With 5 valves, strongly striate in a 

 radiate manner; dorsal-valve compressed at the sides* 

 sharply carinate. 



Donovan t. i66./. 2. Lister t. 44O./. 283. 



Shell about an inch long, refembling the laft, except in beinfj 

 ftrongly striate and fomewhat reticulate, the valves sharper and 



