240 report— 1856. 



Bulimus nux, B. calvus, B. eschariferus, B. unifasciatus, and B. rugulosus, from 

 Chatham Is., Gelepagos, p. 54. Also, from the same island, 



Chemnitzioides, Forbes, p. 55. pi. 9. f. 6 a, b : and 



Achat inellinus, Forbes, p. 56. pi. 9. f. 5 a, b. (In text Achat ellinus, err. typ.) 



■ fimbriatus, Forbes, p. 56. pi. 9. f. 7 a, b. Box labeled Panama. 



alternatus, Panama, p. 54. 



Succinea cingulata, Forbes, p. 56. pi. 9. f. 8 a, b, " said to come from Mazatlan." 



"Out of 307 species of shells collected by the voyagers, 217 are marine 

 Gasteropoda, 1 is a Cephalopod, and 58 marine bivalves. The new species 

 are all from the American shores. There are no products of deep-sea 

 dredging. A few specimens of considerable interest were taken by the 

 * Herald ' at Cape Krusenstern." The following species are described by 

 Prof. Forbes: — 



Page. Plate. Fig. 



271 11 la, b. Trochita spirata, Yorhes. Massaniello, Gulf of California. 

 271 11 9 Trochus castaneus, Nutt. MS. Sta. Barbara, &c. Nuttall. 

 271 11 8 a, b. (Monodonta) gallina, Forbes. " Probably from the Ma- 

 zatlan coast." San Diego, Lieut. Green. 



271 11 7 a,b. aureotinctus, Forbes. "With the last." San Diego, 



Lieut. Green.=T. cateniferus, Potiez, teste Gould. 



272 11 11a, b. (Margarita) purpuratus, Forbes, " ? W. coast of N. A." 



272 1 1 10 a, b. Hillii, Forbes. " ? N.W. coast of N. A." 



272 11 2a,b,c. Natica Pritchardi, Forbes. Mazatlan, abundant. =N. Chemnitzii, 



Pfr. non Recl.=iV. maroccana, var. teste Koch. 



273 11 6 Planaxis nigriiella, Forbes. " Straits of San Juan del Fuaco." 



=P. acuta + P. obsoleta, Mke. As this species is found in 

 extreme profusion at Mazatlan, and was not found by Mr. 

 Nuttall, it is in the highest degree improbable that it should 

 occur in abundance so far north in Oregon. It was probably 

 from San Juan in the Gulf of California. 



273 11 12 Purpura analoga, Forbes. Probably from the Oregon district. 



274 decemcostata, Midd., var. approaching P. Freycinetii, 



274 planospira, columellaris, and Carolensis ; " probably from 



the Galapagos." The two latter occur also at Mazatlan. 

 274 9 10 Fusus Kelletii, Forbes. One sp. from the Californian coast. 



274 Oregonensis. Californian coast. 



274 salebrosus. Mazatlan. 



The types of the described species, and numerous most beautiful and 

 interesting specimens have been presented to the British Museum. The 

 remainder may be seen by students in the drawers of the Mus. Pract. Geol.: 

 but the condition of the labels is not such that any dependence can be 

 placed on them unless confirmed from other sources. In the only list that 

 remains, it is said that there were the following shells from the Galapagos : 

 18. Eight species of small shells; 19. Nerita ; 20-22. Purpura; 23-25. 

 JBuccina ; 26. Arcce; 27. Bulimus. Of the bulk of the collection, 95 

 species are known from other sources to occur at Mazatlan, and 35 species 

 have been taken in other parts of the province between Mazatlan and 

 Panama. Of the remainder, several are known to belong to Ecuador and 

 Peru, and some, as Pomaulax undosus and Acmcca Oregona, to the Cali- 

 fornian coast. But so large a number, even of those placed with the 

 Mazatlan shells, and perhaps obtained by commerce from that spot, are 

 known to be inhabitants of the Pacific Islands and the East Indies, that a 

 list of them would be entirely useless for our present object. 



Among the specimens collected by Messrs. Kellett and Wood during their 

 voyage, which have been by them presented to the British Museum, have 

 been observed the following species : — 



