ERRa^TA. 



Page 307, line 23, for cavajuted, read convoluted. 



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



Page 383, line 23, for ^oZi(?ea, read Montagua. 



Page 383, line 26, for CaroZtna, read CorypheUa. 



Page 392, line 23, for micropthalma, read microphthalma. 



Page 393, last line, for Sargatia, read Sagariia. 



Page 399, line 2J,for L€ptocliiton,Tesid Clicetopleura. 



Page 399, line 32, for Leptochiion, read TracJiydermon. , 



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



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



Page 415 line 25, for Unicola, read Uneiola, 



Page 427, line 15, and page 429, line 28, foi Melitta testud'maria, read Mellita pentapora. 



Page 433, line 34, for Ampliipholis, read AmpTiiura. 



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



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



Page 459, line 36, for Eclithrogalus, read EcMhrogaleus. 



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



Page 483, line 4, for can/enit Za, read catenuJa. 



Page 496, line 28, for A. ternata,Tead C. ternafa. 



Page 498, line 5, for Tedania, resid. Ralichondria panicea. 



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



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



Page 508, line 5, for Acutum, read A. acutum. 



Page 509, line 18, for Tcevigata, read discors. 



Page 509, line 32, for thraci-formis,Tesid tliraciformis. 



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



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



Page 561, line A'^, iov pingns, leoidi pinguis. 



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. 



