CUBAN ANNULlARIIDAE — ^TORRE AND BARTSCH 261 



TUDORA (RAMSDENIA) NOBILITATA YATERASENSIS. new subspecies 



Plate 25, Figuke 4 



This race comes from the Yateras region, northeast of Guantdnamo, 

 Oriente Province. It is a small slender race, in which the spiral 

 lirations are inconspicuous and the spiral cords on the umbilical wall 

 are weak. 



The type, U.S.N.M. No. 356484, has 3.2 whorls remainmg, of which 

 the first bears 90 axial riblets, while the last has 124. The base shows 

 only the merest indications of spiral threads, and the umbilical wall is 

 marked by 8 very feeble cords, which render the axial riblets weakly 

 nodulose. The type measures: Length, 5.9 mm.; greater diameter, 

 3.2 mm.; lesser diameter, 2.8 mm. 



TUDORA (RAMSDENIA) NOBILITATA MAYARIENSIS, new subspecies 



Plate 25, Figure 3 



This is the largest of all the races. The type, U.S.N.M. No. 

 535669, was collected by Wright at Piloto Arriba, Mayarl, Oriente 

 Province. It has 3.2 whorls remaining, of which the first bears 102 

 riblets, the second 121, and the third, which is a little more than two- 

 tenths of a turn, bears 123. The spiral sculpture on the base is too 

 feeble to be definitely described, and the umbilicus bears 7 weak cords. 

 The type measures: Length, 6.7 mm.; greater diameter, 5.0 mm.; 

 lesser diameter, 4.2 mm. The large size and stout shape will easily 

 dift'ercntiate this from the other subspecies. 



TUDORA (RAMSDENIA) BUFO (Pfeiffer) 



Plate 25, Figuke 2 



1864. Ctenopoma? bufo Pfeiffer, Malakozool. Blatter, vol. 11, p. 104. 



1865. Ctenopoma bufo Pfeiffer, Monographia pneumonopomorum viventium, 



Suppl. 2, pp. 113-114. 

 1867. Cyclostoma bufo Arango, Repert fisico natural Isla de Cubana, p. 74. 

 1920. Ramsdenia bufo Henderson and Baktsch, Proc. U. S. Nat. Mus., vol. 58, 



p. 79. 



Shell elongate-conic, pale yellow. Nuclear whorls decollated in all 

 our specimens. Postnuclear whorls strongly rounded, marked by 

 lamellar, slightly retractively slantmg, hollow axial riblets, of which 62 

 occur on the first, 76 on the second, and 88 on the last of the remaining 

 turns. These riblets are developed into strong auricles at the summit. 

 The spiral sculpture consists of broad, low, rounded threads, which 

 render the axial riblets conspicuously scalloped at their junctions. 

 Five of these threads occur on the first of the remaining turns, and 6 

 are on the last. Suture strongly constricted. Periphery well rounded. 

 Base short, well rounded, narrowly, openly umbilicated, marked by the 



