130 AMERICAN JOURNAL 



Neritina Tahitensis, Lesson. 



1830. Voy. Coquille, p. 385. 



1838. N. Lamarckii, Desh., An. sans Vert, vol, 8, p. 578. 



N. auriculata, Sow. non Lam., Con. 111. fig. 17. 



1852. N. Tahitensis, Soul., Voy. Bonite, pi. 34, fig. 36—39. 



" ' : " Gld., Am. Ex. Ex. p. 161, fig. 181. 



Authors have confounded the above species, inhabiting Tahiti, 

 with Vespertina, Nutt., found only at the Hawaiian Islands, and 

 the auriculata, Lam., which was originally described from islands 

 near Australia, but afterwards discovered by Quoy at New Ire- 

 land. M. Recluz classes them all together. Sowerby mistakes 

 the Australian for the Tahitian species, and Gould the Hawaiian 

 for the Tahitian in name only, but distinguishes the animal cor- 

 rectly. They are not only distinct as to animal, but the shell 

 also. That of the latter is less dilated, and radiately striate, as 

 well as marked by fine concentric lines of growth ; the former 

 is regularly striated concentrically, and more depressed in form. 

 Auriculata, as figured in Conch. Icon., appears to be a variety 

 of Tahitensis. 



Neritina Vespertina, Nutt. 



1855. Conch. Icon. Sp. 61. 



1852. N. Lamarckii, Gld. non Desh., Am. Ex. Ex. p. 162, 

 fig. 180. 

 Dr. Gould figures the Hawaiian species correctly, but attaches 

 to it the name of the Tahitian. 



Neritina Deshayesii, Pease. 



1845. N. Sanchvichensis, Desh. non Phil., An. sans Vert. vol. 

 8, p. 579. 



We have specimens of the above species from the Island of 

 Bourbon, which agree precisely with the original description by 

 M. Deshayes, and are quite distinct from any species inhabiting 

 the Sandwich Islands. M. Lesson, during the Voy. Coquille, 

 collected at the Mauritius a species of Neripteron, which he de- 

 scribed as N. Mauritii. M. Recluz, and also Mr. Reeve, con- 

 found it with the Bourbon shell. 



If the shell, however, figured by Reeve is from the Sandwich 

 Islands, as he states, it is a variety of vespertina, Nutt. 



Dr. Philippi, in Ab-bild. und Besch., figures a specimen of Nut- 

 tallii, Reel., as Sandwichensis, Desh. It appears that authors 

 have been misled by the name and have consequently connected 

 it .with some one of the Sandwich Island species. We propose, 

 therefore, to correct the name, which is a misnomer, by attach- 



