CUBAN ANNULARIIDAE TORRE AND BARTSCH 331 



ANNULARIA (TROSCHELVINDEX) CANDEANA FALLAX, new subspecies 



Plate 37, Figure 3 



This subspecies occupies the region about Sagua la Grande, Santa 

 Clara Province. It differs from the typical species in having many 

 more ribs and spiral threads, and in having them very closely spaced, 

 so that the combination instead of producing a fenestrated pattern 

 yields small rounded pits between the ribs and the spiral cords. The 

 denticles at the summit are much more strongly developed and em- 

 brace more riblets. The peristome is usually adnate, and it is nar- 

 rower than in the typical race. 



The type, U.S.N.M, No. 535581, which comes from Loma Iradi 

 at Sagua, Santa Clara Province, has 4.8 whorls remaining and measures: 

 Length, 13.5 mm. ; greater diameter, 6.2 mm.; lesser diameter, 5.4 mm, 



ANNULARIA (TROSCHELVINDEX) CANDEANA CANDEANA (Orbigny) 



Plate 37, Figure 1 



1842. Cyclostorna candeanum Orbigny, in Sagra's Histoire physique, politique et 



naturelle de I'lle de Cuba, vol. 1, pp. 261-262, pi. 22, figs. 15, 17. 

 1852. Cistula candeanum Pfeiffer, Conspectus cyclostomaceorum, pp. 42, 392. 



1857. Cistula candeana Troschel, Das Gebiss der Schuecken zur Bergriindung 



einer natiirlichen Classification untersucht, vol. 1, p. 75, pi. 5, fig. 1 

 (Radula). 



1858. Cyclostorna illustre Poey, Memorias sobre la historia natural de la isla de 



Cuba, vol. 1, pp. 1, 33, 89. 

 1878. Cistula illustris Arango, Contribucion a la fauna malacologica Cubana, 



p. 23. 

 1920. Avnularia illustris Henderson and Bartsch, Proc. U. S. Nat. Mus., vol. 



58, p. 73. 

 1924. Troschelvindex illustris Baker, Natuilus, vol. 37, p. 90. 

 1935. Troschelvindex candeanum Aguayo, Mem. Soc. Cubana, Hist. Nat., vol. 9, 



pp. 1-5. 



This subspecies differs from the eastern race in usually being paler, 

 in having the outer lip more expanded, more denticulated, and usually 

 free from the parietal wall. Also the axial ribs and the spiral threads 

 are more distantly spaced and the denticles at the summit are less 

 numerous. 



The specimen described and figured, U.S.N.M. No. 355908, is one 

 received from Poey. It comes from the region of Habana, the type 

 locality. It has 5.0 whorls remaining and measures: Length, 13.0 

 mm.; greater diameter, 6.3 mm.; lesser diameter, 5.0 mm. 



ANNULARIA (TROSCHELVINDEX) INCULTA (Poey) 



Plate 38, Figure 7 



1851. Cyclostoma incultum Poey, Memorias sobre la historia natural de la isla de 



Cuba, vol. 1, p. 98, pi. 8, figs. 3-5. 

 1861. Cistula mculta Bland, Ann. Lyceum Nat. Hist. New York, vol. 7, p. 27. 



