RECENT MOLLUSCA OF AUGUSTUS ADDISON GOULD 15 



labe. In regard to the molluscan section only, the report almost does 

 this, but the quality of the French color engravings of the period 

 seldom has been equaled. 



As mentioned earlier, the collection of mollusks was under the care 

 of the National Institution, where it suffered the vicissitudes already 

 described. If the entire collection was not borrowed by Dr. Gould, 

 it seems certain at least that he had the new species in Boston. When 

 they were returned, as also stated earlier, they were turned over to 

 the newly founded Smithsonian Institution. There is a letter, how- 

 ever, in the Boston Society of Natural History (now the Museum of 

 Science) from P. P. Carpenter to Gould, dated October 23, 1859, 

 which says, "Would you return the Exploring Expedition Shells now 

 in your possession?" According to Carpenter (1863, p. 530), "The 

 shells remained unopened in 1859-1860 and the types not accessible, 

 till at the request of Prof. Henry, I undertook the arrangement of 

 the collections. Fortunately, a considerable part of the shells pro- 

 fessing to be new species were found together, with the artist's marks 

 corresponding with the plates and figures." 



The Smithsonian Institution was supposed to receive all collections 

 made by the government, with the right to exchange duplicates. 

 Many paratypes of the Exploring Expedition shells were then dis- 

 tributed along with ordinary duplicates. The paratypes were ac- 

 companied with printed labels bearing the inscription "Named from 

 the Type Specimen." The Museum of Comparative Zoology in Cam- 

 bridge has many such lots. The New York State Museum received 

 a distribution of 273 duplicate lots from the Smithsonian Institution 

 in 1862 (15th Ann. Rep. New York State Mus., pp. 23-25), some of 

 them paratypes. This is probably the typical collection sent out. 

 In the so-called "Gould Type Collection" from the New York State 

 Museum, now on permanent loan at the Museum of Comparative 

 Zoology, there are some of these printed labels; the remaining Ex- 

 ploring Expedition types must have been retained by Gould at the 

 time of original description. 



Summary of the types/ — In his final report on the Expedition 

 shells, Gould described some 443 species. Of this number, I have 

 located 308 in the United States National Museum and, through 

 Carpenter's previous labor, it has often been possible to ascertain 

 the figured holotype. In other instances, syntypes have been found. 

 Since all the species had been well figured, in most instances I have 

 neither selected lectotypes nor refigured them. Types of 27 additional 

 species have been located in the "Gould Type Collection" or in the 

 Museum of Comparative Zoology collection. Of the 110 species that 

 have not been found, 57 were naked mollusks, some of which had not 



