CUBAN ANNUIjARIIDAE — TORRE AND BARTSCH 283 



KEY TO THE SPECIES OF THE SUBGENUS ANNULARODES 



Last whorl decidedly solute. 



Outer peristome of inner lip broad uncinata 



Outer peristome of inner lip not broad canoaensis 



Last whorl not decidedly solute. 



Last whorl free from the preceding turn, immediately behind 

 the peristome. 



Outer lip of outer peristome moderately broad terneroensis 



Outer lip of outer peristome narrow. 



Axial ribs closely spaced cantarillensis 



Axial ribs not closely spaced indivisa 



Last whorl not free from the preceding turn, immediately be- 

 hind the peristome. 



Sculpture fine and feeble obsoleta 



Sculpture not fine or feeble perezi 



ANNULAMA (ANNULARODES) UNCINATA (Arango) 



Plate 28, Figure 7 



1884. Choanopoma uncinatum Arango, Proc. Acad. Nat. Sci. Philadelphia, p. 211. 

 1920. Annularia (Annularodes) uncinata Henderson and Bartsch, Proc. U. S. 

 Nat. Mus., vol. 58, p. 74. 



Shell elongate-ovate, of straw-colored ground color, marked by 

 rather large, interrupted, sph'al bands of brown, which consist of 

 rather large spots that are arranged in both axial and spiral series. 

 Nuclear whorls decollated. Postnuclear whorls strongly rounded, 

 marked by retractively curved axial riblets, of which 60 are present 

 on the first and 112 are on the last whorl. These riblets become ex- 

 panded at the summit into hollow tufts, or several of them may become 

 fused to form such a tuft. Occasionally there is an indication of a 

 slight nodule below the expanded summit. Suture strongly con- 

 stricted. Periphery inflated, strongly rounded. Base moderately 

 long, well rounded, marked by the continuation of the axial ribs, wliich 

 extend prominently into the umbilicus, and on the anterior portion of 

 the umbilical wall by 12 spiral cords, which render the axial riblets 

 nodulose. The last whorl is decidedly solute and deflected for about 

 three-tenths of a turn. Aperture almost circular; peristome double, 

 the inner moderately exserted and slightly reflected; the outer rather 

 broadly expanded on the inner Up, a little less so on the parietal wall, 

 and narrow on the outer and basal lip, forming a very conspicuous 

 auricle, which embraces the reflected siphon. The outer peristome 

 is marked by a series of concentric lamellae, which are particularly 

 conspicuous at the auricle. Operculum typically annularid. The 

 siphon is reflected backward and opens freely. 



The specimen described and figured, U.S.N.M. No. 535616, a cotype, 

 is from San Juan de los Yeras, Santa Clara Province. It was received 

 from Arango by Dr. de la Torre. It has 4.0 whorls remaining and 



