lP8r,.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 259 



able ill sculpture. It was the ouly Melauian observed in Florida during 

 my Journey. 



Neritina reclivata Say. Plate 17, fig. 8. 



Xiriliita rvclivata (Say), Reeve Conch. Icon. fig. 34, a-h, Oct. 1855. 

 Thiodoxus reclivatus Say, Jonvn. Acad. Nat. Sci. Pliila., ii,p. 257. 

 XeriHva microstoma D'Orbigny, Moll. Cuba, ii, p. 48, pi. xvii,fig. 36,1842. 

 Xeritina jioridana Shuttleworth, in Reeve Conch. Icon., fig. 85, Nov., 1855. 

 XiriltJIa reclicaia Biun. L. and F. W. Shells of N. Am., Ill, p. I(f3, 1865. 



This shell was originally collected by Say from the Saint John's Eiver, 

 Florida, where it is still abundant. Specimens have been received from 

 General F. E. Spinner and others. Further south they are smaller, darker, 

 and less often eroded. Tljey have been collected at the mouth of the 

 Manatee Kiver by Colonel Jewett; at Tampa by Stearns, Jewett, and 

 Heuii)hill-, in Cuba, by Arango; Jamaica, by Governor llawson, and 

 are reported from Martinique by D'Orbigny. Some quite small speci- 

 mens from a brook near I^\lma Sola were obtained by Mr. I. Greegor, 

 of Jacksonville, which at first sight appeared quite distinct, being black, 

 with a cerous labrum, but the light zigzag lines, characteristic of some 

 color varieties of reclivata, were beautifully clear by transmitted light. 

 These shells attained a maximum length of 1 centimeter (0.4 inch), and 

 were, except in color, identical with 3^. reclivata, of the same size. To 

 distinguish them, if thought desirable, they might take the varietal 

 name of JV. reclivata, var. I'alma', The Antillean microstoma is identi- 

 cal with reclivata, the colors being sometimes a little brighter, but there 

 is no other difference of any sort. There are several other Antillean 

 forms which are extremely close to our species, and may eventually 

 prove mere local varieties of one species. The name Neritella, adopted 

 by H. and A. Adams from Humphre.y, and applied by Binney to the 

 various American Neritina^, has no standing in nomenclature and was 

 never described. 



Neritina viridis Linuc?. 



Xerita viridis L., Syst. Nat., ed. xii, p. 1254, 1767. 



Xeritina viridis Lamarck, An. s. Vert., vi,2, p. 188. 



Common throughout the Antilles in salt water. Eare among seagrass 

 at low water. Key West, ISTo Kame Key, Hemphill. I believe this spe- 

 cies has not before been reported living on the coast of the United States. 

 It is, perhaps, the most unmistakable species of the group. 



Neritina virginea Linn6. 



Xerita virfjinca Lin., Syst. Nat., ed. xii, p. 1254, 1767. 

 Xeritina virgivca Lam., An. p. Vert., vi, pt. ii, p. 187, 1822. 



Habitat. — All the Antilles, D'Orbigny; among mangroves at high 

 water, ISTo ISTame Key, Florida, Hemphill. 



Mentioned by D'Orbigny but not by Binney as Floridian. 



Glandina truncata Gmelin. 



Banks of the Saint John's Eiver at Jaclisonville and Palatka, Dall. A 

 beautiful pink vaxiety at Enterprise, on Lake Monroe ; the variety ^ar- 

 allela Binney, at Marco, H. Hemphill j &c. 



