Varieties of Land and Fluviatile Shelh of Jamaica. 7 



classification of this, which at present stands only as a 

 species. Why all these at-present-called varieties should 

 not be elevated into species, I cannot understand. There is 

 so great a peculiarity in the so-called species Maugeri so 

 totally distinct is it from all other Jamaica Cylindrellce') 

 save and except Cyl. Gossei (which should perhaps be 

 included among them,) that Maugeri ought, in my opinion, 

 to be elevated into a genus, and all the now called varieties 

 should be advanced into species : convenience at least 

 would justify this procedure. If many species of Gylin- 

 drella are admitted among all that group, from C. Hollandi 

 to C. pupoe formis (see Catalogue Cont. Conch., p. 183,) 

 and the marked differences among them are not even so 

 great as amongst the so called vars. of C. Mangvri, (id. p. 

 182-3) I cannot reconcile the one being species, and the 

 other varieties. Show one var. of the C. Maugeri^ and 

 almost at once its habitat is determined, and the utter 

 hopelessness proclaimed of finding it in any other region 

 of the island. Besides, some of these so-called vars. are 

 varied in their own class. Thus, of C. Maugeri v&r.fusca, 

 we have brown, white, and yellow vars. (See the British 

 Museum suite of Jamaica Land and Fluviatile Shells, No. 

 669 a) : yet variety of variety is scarcely admissible. * 



CYLINDKELLA MAUGERI. Yar. RADIATA. Shell long, not 

 robust, shining. Lip and last part of last whorl, white ; 

 rest dirty yellow ; whole shell boldly but beautifully 

 striated. Aperture long and rather angulated below, 

 where the peritreine is much expanded, and but little re- 

 flected. Whorls nearly nine. Length .9, breadth .23. 



This Shell, of which I have only one specimen, was given 

 me by DR. HYDE. 



Habitat ? Northside ? 



CYLINDKELLA MAUGEEI. Var. FUSCOLABRIS. Shell robust, 

 and moderately thickened ; shining sulphur-yellow in the 

 middle, brick-red tinge on the truncate apex ; last whorl 

 white, with an ill-defined band of brick-red on the back of 

 the lower part of the lip. Last whorl much rounded. Keel 



