#508 MOLLUSCA. 
pared with P. retecosus, Hinds, having the more slender form and finer 
reticulation, but with the peculiar varicose lip, and nearly the same 
size and colour. It is, perhaps, still more like P. senticosus, but it is 
much less asperous, and peculiarly inflated near the suture. 
Figure 560, ventral, and 360 a, dorsal view of the shell. 
a 
Page 247. RicinuLA TUBERCULATA. Refer to Figure 305, shell, with 
the animal, as in crawling; 305 a, plantar view of the animal and 
shell. 
Page 256. Buccinum rartnosum. The reference should be to Figure 
323, instead of 515. 
Page 274. Mirra cApiLLAta. Reference should be made to Figure 
ool. 
Page 290. PrroNIA INDOLENS. Reference to Figure 382 has been 
omitted. 
Page 299. Third line from top, for “ dorsal” read “ ventral.” 
Page 307. Six lines from bottom, for “lateral” read “ dorsal.” 
Page 314. Nine lines from top, for “ valves” read “ areas.” 
Page 331. Curron Lignosus. For “ Middendorff” read “ Wosnes- 
senski,” and refer to Figure 424. 
Page 338. At bottom, for “449” read “439.” 
Page 394. Macrra pestis. The specimen was accidentally crushed, 
and the figure necessarily omitted. 
Page 595. LutrartA MAxImA. As this name was previously given 
to a fossil species by Jonas (Menke’s Zeitschrift, March 1844, p. 54), 
the name given by me, L. capax, will stand. 
Page 412. Donax crocatus. Specimens lost, and therefore not 
engraved. 
Page 419. Venus ToREUMA is probably V. crebrisulca, as given by 
Sowerby, Thes. Conch., f. 187-9. 
Page 4530. Unio porsuosus. The shell recently described by Mr. 
Conrad under the name of U. Napeanensis (Journ. Acad. Nat. Sciences, 
il. 296, pl. 26, f. 4), seems to be identical with this. 
