326 PROCEEDINGS OF THE NATIONAL MUSEUM Vol.89 



ANNULARIA (ANNULARITA) MAJUSCULA EXCELSA, new subspecies 



Plate 36, Figure 5 



This race comes from the extreme height of Pan de Giiajaibdn, 

 Pinar del Rio Province. It is distinguished from the typical A. (A.) 

 majttscula majuscula by being much more elongate-conic, that is, 

 slender, and by lacking the immense thickening of the peristome; in 

 this subspecies the peristome is rather sharp. 



The type, U.S.N.M. No. 535594, has 5.0 whorls rcmammg and 

 measm-es: Length, 37.8 mm.; greater diameter, 21,5 mm.; lesser 

 diameter, 16.8 mm. 



ANNULARIA (ANNULARITA) MAJUSCULA CATALINENSIS. new subspecies 



Plate 36, Figure 4 



This subspecies comes from La Catalina, between Pan de Guajaib6n 

 and the Sierra de La Gtiira, Pinar del Rio Province. We have also 

 seen it from the Mogote del Bosque and Mogote del Indio on the east 

 side of the Rio San Diego. It is a small race, with a thin outer 

 peristome. 



The type, U.S.N.M. No. 356215, has 3.6 whorls remaining and 

 measures: Length, 21.1 mm.; greater diameter, 14.0 mm.; lesser 

 diameter, 10.6 mm. 



Subgenus Troschelvindex H. B. Baker 



1924. Troschelvindex H. B. Baker, Nautilus, vol. 37, p. 90. 



Shell elongate-conic, marked by rounded axial ribs and by spiral 

 cords, the combination forming a fenestrated pattern. Some of the 

 axial ribs are gathered into conspicuous tufts at the summit. Peri- 

 stome double. Operculum typically annularid. 



Type: Annularia (Troschelvindex) candeana (Orbigny). 



Dr. Baker, loc. cit., reestabhshed the fact mentioned by Troschel 

 that the rachidian tooth of the radula in "Cyclostoma illustre Poey" 

 had an extra minute denticle on each side of the central cusp, sug- 

 gesting affinity with the European Pomatias. He therefore placed 

 all of the American annularids in the family Pomatiasidae. The 

 mere presence of an extra ultra-reduced denticle in one or two species 

 hardly leads us to concur with him in this arrangement. Why may 

 this not be a sport character whose variance from the norm may not 

 represent genetic affinities? Cuba has a rather large assemblage of 

 species which, in shape and sculpture of shell as well as in opercular 

 characters, form a natural group. To this group we shall assign the 

 name Troschelvindex. 



