ADDITIONS AND COEEECTIONS 549 



cosa, G-ld. Hex. fy Cal. Shells, p. 17." 



Species 80. Add "Comp. Mulinia donaciformis, Gray, in Mag. 

 Nat. Hist. K S. vol. i. p. 376 :Zool. Beech. Voy. p. 154, 

 pi. 44, f. 13, 'from Nevis.' " 



Species 81 should be "GNATHODON MENDICUS, Gld. Mactra 

 mendica, Gld. in Proc. Bost. Nat. Hist. Sac. 1851, p. 88 : 

 Hex. $ Cal. Shells, p. 20, pi. 15, f. 4." 



Species 85. Add as synonym, " = Cytherea aequilatera, Desk, in 

 Rev. Cuv. 1839, p. 358 -.Mag. Zool. Guer. pi. 22 : (Tri- 

 gona se.) B. M. Cat. Ten. p. 50, no. 17. San Bias." To tablet 

 246 add "also a smaller sp. with its velvety epidermis." 



To tablet 258 add "also an intermediate sp. with the ribs 

 interrupted." 



Page 66, line 15, add "pi. 9, f. 1, 2." 

 67, line 24, add "a, b, as of Lesson." 

 70, line 11, add " Chen. Conch. III. pi. 1, f. 4, 4 a, 4 6." 

 ,, 72, fwe 10 from bottom, dele the reference. 

 79, line 6 from bottom, for "*6," read '''06." 



Page SO, after line 17, add "? = Venus succincta, F&Z. _Zfec, OZ.?. 

 vol. ii. p. 219, pi. 48, f. 1, a, b, c. Acapulco." 



Page 82. In tablet 413, for "2 minute valves," read "1 minute 

 valve". The Genus Gouldia (teste Gould) is an Astarte with 

 lateral teeth, as supposed. The West Indian Crassatella 

 Guadalupensis, D'Orb. is the exact analogue of Gouldia 

 Pacifica : his Cr. Martinicensis is intermediate between that 

 species and G. varians. 



To tablet 420 is added a minute pair measuring '018 by "015. 



Page 87, line 8, for "f. 57" read "f. 5-7." Add to synonyms, 

 "Chama frondosa, Chen. Conch. III. pi. 6, f. 8: (var. M'exi- 

 cana) f. 7. (Do. jun. as Ch. echinata, Brod-, apparently 

 copied from the Transactions) pi. 6, f. 6." The true Ch. 

 echinata appears to be figured as Ch. Delessertii, pi. 6, f. 4. 



PageQO, line II, for "Hipponyx tessellata," read "H. serratus." 

 102, before line 5, insert "FAMILY DIPLODONTID.E." 



Page 103, line 4> from bottom, for "GENUS ," read " SUB- 

 GENUS FELANIA, He'd., H. fy A. Ad. Gen. vol. ii. p. 473." 



Species 154, add fo synonyms "Comp. Poronia Petitiana, Chen. 

 Conch. III. p. 2, pi. 1, f. 2. Callao (Petit), not rare." 



