Ml WORMS- TESTACEA. 33. Lepas. 



\ t S/W/ about. half an in^h high, and lefs in diameter, generally dU> 

 vided into 6 compartments by furrows which become broad to- 

 wards the top, vyhere it fpreads into angular points, wrinkled or 

 ftriate longitudinally, fometimes fmooth, white or purplish-red ; 

 aperture large, the lid tranfverfely ribbed. 



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

 3 narrow compartments, wrinkled longitudinally* 

 faintly striate transversely, 



Br. Z00L t. 37. /. 5. a. Donovan.. X. 36./. 3. 



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

 cloven above the lid, with obtufe compartments. 



160. B. Tiiitinnabulum. Conic, obtuse, with 3 raised com* 

 partments contracting to a point upwards and longitu- 

 dinally striata, and 3 depressed-ones contracting to a 



point downwards and transversely striate. 



Donovan t, 148. Barbut t. 1. f A 6. . 



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

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



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

 distant ribs diverging from the aperture. 



Donovan Brit. Shells, t. tab. so./. 2. 



Shell fmall, whitish, with about 1 8 ribs. 



W2. B. conoides. Conic, smooth, finely reticulate, with 

 pointed compartments : aperture very narrow. 



Donovan Brit. She/Is. 1. tab.,36./. 3. 



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 iv.r. 38./. 1. Donovant. 36./. 1. Lepas striatus. 



Shell hardly a quarter of an inch wide, white, 6trongly and 

 obliquely ribbed : aperture oblique, clofed by the lid. . 



164. B. Diadema. Somewhat compressed, with 6,promi- 

 nent longitudinally ribbed valves, alternating with as 

 many depressed transversely striate ones. 



Donovan Shells t. 56./. 1. 2. Da Costa t. Vj.f, 2. a. 2. 



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

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

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

 a radiate manner. 



34. LEPAS. BemaQle. 



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. 7. Da Cost. t. 17./. 3. 



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

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

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

 curved, narrow, rounded on the back, inclosing the, others : pe- 

 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 sidesj 

 sharply carinate. 



Donovan t. 166./.2. tister t. 440./. 283. 



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

 ftrongly striate and fomewhat reticulate, the valves sharper and 



