546 APPENDIX 
127. Caiyptrea (Dyspotea) spinosa, Sow. B, M. Cat. sp. 344. 
128, Calyptrea cepacea, Brod. sy ea. 
129. Hipponyx foliaceus, Quoy & Gaim. aa. 
130. Lissurella virescens, Sow. ee 271. 
131. Hissurella viminea, Reeve. a, LEP OTS! 
132. Patella mexicana, Brod. = 259. 
133. Acmea mutabilis, Mke. », 261, 264. 
Acm. testa elliptica, convexa, posterius depressa, radiatim 
dense lirata: liris tenuibus, longitudine inzqualibus; juvenili 
extra rufa, intus rufo limbata ; senesente extra, medio, late nigro 
zonata, basi paleaceo-hirsuta. Long. 1 poll. 9 lin.; lat. 1 poll. 
3, ) lin.; alt. 5 lin. 
134. Acmaa fascicularis, Mke. ae 264. 
Acm. testa elliptica, convexa, tenui, subpellucida, radiatim 
dense lirata et concentrice tenuissime striata; liris tenuibus, 
ineequalibus ; alba, maculis transversis linearibus fuscis radiata: 
radiis posticis fasciculatis. Long. 8, 5, lat. 6, alt. 2 lin. 
135. Acmea mesoleuca, Mke. : 263. 
Acm. testa orbiculato-elliptica, conyexa, solidiuscula, subpel- 
lucida, radiatim dense lirata: liris tenuibus, inequalibus, 
transverse striatis hineque granulato-scabris, majoribus albidis ; 
fusca, maculis radiantibus albis variegata; intus basi e fusco et 
albido articulata, medio zona prasina, impressione musculari 
fusca. Long. 13,5, lat. 11,3, alt. 3 lin. 
136. Siphonarta denticulata, Quoy & Gaim. wn ? 239. 
ADDITIONS AND CORRECTIONS. 
The proof sheets of this work having been submitted to 
several naturalists, and fresh sources of information having 
been obtained, during its progress, the following errors have 
been discovered, and additions made.* Such typographical 
mistakes as are at once detected, are not here noticed. 
* Besides the additional specimens recorded above, ‘‘one valve” should be 
added to tablets 319, 542, 547, 653, 689; and ‘‘two valves” to 267, 472, 486. A 
small pearl, from the Spondylus washings, is added to tablet 681; ‘‘one speci- 
men” to 786, 906, 1354, 1529, 2429; and ‘‘two-‘specimens” to 716, 2512. On 
the other hand, the specimens for tablets 439, 676 and 2244 have not yet reap- 
peared, after the various processes of packing, mounting, &c, 
