ERRATA. 



Page 307, line 23, for caYalutetl,read couvoluted. 



Page 310, line 8, page 401, line 12, and elsewhere, for Osfma, read Ostrea. 



Page 383, line 23, for jEoUdia, read Montagua. 



Page 383, line 26, for CavoUna, read CorijpheUa. 



Page 392, line 23, for microptbalma, read micropbtbalma. 



Page 393, last line, for SargaUa, read Sagartia, 



Page 399, line 21, for Zep<oc/u tow, read Chatopleura. 



Page 399, line 32, for LeptocMlo)i,vea.d Trachydermon. 



Page 405, line 27, for Eucrate, read Eucrafea. 



Page 407, line 38, for reproducsive, read reproductive. 



Page 415 line 25, for I7nico?a, read Unciola. 



Page 427, line 15, and page 429, line 28, for Melitta testudinaria, read Mellita pentajiora. 



Page 433, line 34, for Amphipliolis, read Ampldura. 



Page 444, line 12, for tidentata, read tridentata. 



Page 457, line 39, for Pandarii, read Pandarus. 



Page 459, line 36, for Echthrogalns, read Echthrogaleus, 



Page 487, line 10, for A. pJanaria, read A Planaria. 



Page 488, line 4, for can fenwte, read catennla. 



Page 496, line 28, for J. ferna to, read C. teniafa. 



Page 498, line 5, for TerZania, read HaUcliondria jyanicea. 



Page 498, line 30, for Augustus, read angustus. 



Page 504, line 41, for page 433, read 432. 



Page 508, line 5, for Acutnm, read A. acufum. 



Page 509, line 18, for la'vigata,read discors. 



Page 509, line 32, for thraci-formis,Tead. thraciformis. 



Page 509, line 33, for Simpson, read Stimpsou. 



Page 547, line 15, for Panopius, read Panopeu3. 



Page 561, line 43, for j^iw^/Hs, read j;u(^h(s. 



Page 619, line 16, for Cosco, read Casco. 



Page 619, last line, for Cisco, read Casco. 



Page 640, first line, for fig. 127, read fig. 124. 



Page 666, line 15, after Montagua pilata, insert Plate XXV, fig. 124. 



Page 680, line 18, for 185, B., read 184, B. 



Page 695, line 34, for fig. 238, read 243. 



Page 716, line 35, for fig. 368, read 268. 



