IS I L1GUU! -- IIKMir.lI.lMI 8. 



always \vliiti.-li. The development of the coltlinellar fold i:.; indepen- 

 ilt-ni of tlic more or less slender 1'onn of the shell. The lip-edge i- 

 white, only in young specimens, in which the lip had not attained its 

 full thickness, the external epidermis -lio\\> darkly through. Only 

 one of the lot is dextral. Four measure as follows: 



Length I'.S, diani. 3<>, length of aperture 3<>. width 1 C> mill. 



Length ."jr.. diani. 32, length of aperture 27, width 17 mill. 



Length .")('., diam. 2'J, length of aperture '25, width 14 mill. 



Length 53, diam. 32, length of aperture 25, width K' mill. 



, sp. undet. PI. 35, fig. 18. 

 A young shell before me differs from all other young sp< . -inn -us of 

 the group in being rounded at the periphery, without trace of a keel. 

 Whorls t'.L; there is no articulated Land in the middle of the whorls 

 of the spire, but one shows at the sutures, and a narrow continuous 

 purple-brown band bordered with cream-tint above, encircles the per- 

 iphery, becoming obsolete on the latter part of the whorl : another 

 narrow band is upon the base. As the young of r<'</ii<, re gall's and 

 iiifisus seem to be keeled. I am at a loss to tell where this shell 

 helong>. The locality, ' Ama/.on,'' may not be reliable. 



Submenus II i.MiHn.nn > von Martens, 1885. 



O 



v. MAKT., ( 'onchologische Mittheilungen, ii, p. 175. 



Shell rather fusiform, sculptured and dark colored ; aperture about 

 half the length of shell, tl ..... liter margin of peristoine unexpanded 

 and obtuse, columellar margin deeply concave, the columella dis- 

 tinctly truncated at its base. Apex obtuse, the tir>t whorl finely 



wrinkled. 



.law composed of }'.} imbricating plates, the median one reaching 

 to the ]o\\er margin. Kadula with the central and inner two lateral 

 teeth on each side helicid in form, with long lanceolate ine>ocone< 

 and slight rudiments of eel ...... lies : the other teeth as in Orthalidna 



generally. 



'I'vpe. Lii/inis i-.r-isiis .Martens = Ai-lmlinn nnujiiijirn I Mr. 



Tlie ^lifll reM'iiihhs l.t'i/nns in it> Jr//</////-like columella, but 

 dill'crs in the sculpture of the apex a- well as of the rest of the sin 11, 

 and the dark coloration. character* a>-imilating it with Orthalicut. 

 Tin- radnla re-cmldi--. f.i</n/is rir;/iiirns and < >r//i/ii-i/s galUnaSvltana 

 in the laiici-ohile ci;-p- of the median teeth. Similarly shaped tei-th 



