m Worms, testacea. ^4.' Lcp » s . 
Inhabits the Ocean, and is found coaimonly adhe‘rfn«f to 
fomet’ ing refembles a globe cut off in the middle; 
Jmoothifh, the lower aperture hexagonal and twice as 
as the upper; lid compoLd of 4 triangular pieces infertel*^ 
a membrane. '• 
daleefo. Shell helitict-Ioftn, with a lateral aperture. 
Schrat, Einl. conch, j. tab, i). fig. 20, a, b, ,| 
Found adhering to the Gofgonta -verrucofa and ■veHtilabrum : 
uoit-iuRpcdf fniooth, with & rhombic apercurc, 
ItJmifds. Shell ered, conic ; the valves palmate at the bafe. 
Inhabits the Ma71t.pl. i. p. c a a. 
Shell white, a little depreffed. lize of i large pea, friioo'^' 
<val<vcs 4 — 6, divided as fat as the middle into c 6 fegin‘:>’‘*' 
lia 4-vaIvcd, oblique. 
ihiipa. Shell fubcubiC, fmooth : lid acute and tranfverfely ftriate^ 
Olaf.lsl, Res. 901 6. a. tab. J3. ‘ 
Afcan. ic. rar. Natur. tab. 10. I 
Inhabits the Northern Ocean. I 
kiiella. Shell coraprelTed, eteft and irregularly ftriate. I 
Rllis Philof.^lranf. 1758. tab. z^i fig. 4. 
Pet. Gaz. tab. 6, f. 10. Ramp/. Muf tab. 7L-j,ji M. 
Klein oflrac. tab. \z.fig. too. 
SebaMuf. 2. tab.6t,fg. 8.3. t. t 6 ,f. 3. 
Chtmn. conch, 8. tab. \ 00, fig. 849, 850. 
Inhabits the Indian Ocean ; white, covered with a dirty 
&in ; -vahes numerous, generally triangular, unequal. 
feated on a common black peduncle, which is coriaceous, 
ly and hollow within. 
ScalpeHum. Shell compreired, i3.valvedi fmoothifli, and feated 
fcaly peduncle. 
Ellis Philof. Traif 1758. tab. 34, fg. 4. 
Gault, left. to6. fg. C. Klein, t. 1 2, /, 91 ? 
Mall. Zool Dan. 3. p. 23. tab. 94, fig. ,,2. 
Lifier conch, tab, 4^5. fig, 281. 
Chemn. conch. 8 . p. 294. P'ign. 7. f. a. A. . , 
Inhabits North Seas ; Icfs than L. anatifera : njahves refen*^^*^ 
fcales, 6 each fide, the longer one curved and inclofioS ^ 
others : peduncle very Ihort, with annular wrinkles. 
Anforiferd. Shell comprelfed, 5-Talved, 'flriate, feated on a pedund*' 
Lift, conch, tab. 44, f. 283. Exerc, anat. t. IQ,/, 4, C- 
Gualt. 106. ftg. 2,3. Klein, t. iz, f 2,3. 
Chemn. conch. 8, tab. too,/. 8e^. , 
