238 PROCEEDINGS OF THE NATIONAL MUSEUM Vol.89 



resembles P. (P.) chordata baracoensis, from which it is easily dis- 

 tinguished by its much larger size. 



The type, U.S.N.M. No. 367788, was collected by Arango. It has 

 4.2 whorls remaining and measures: Length, 11.0 mm.; greater diam- 

 eter, 5.9 mm.; lesser diameter, 5.2 mm. 



PARACHONDRIA (PARACHONDROPS) CHORDATA BARACOENSIS, new subspecies 



Plate 21, Figure 10 



In this race, which comes from Silla de Baez, west of Baracoa, both 

 peristomes are flaringly expanded, as in P. (P.) chordata tanamensis, 

 but the shell of baracoensis is smaller. 



The type, U.S.N.M. No. 535334, has 4.5 whorls remaining and 

 measures: Length, 7.8 mm.; greater diameter, 4.2 mm.; lesser diam- 

 eter, 3.3 mm. 



PARACHONDRIA (PARACHONDROPS) CHORDATA MAYARIENSIS, new subspecies 



Plate 21, Figure 8 



This race was collected by Jeanneret at Picote, and by John B* 

 Henderson at Piedra Gorda, Mayari, Oriente Province. It belongs 

 to the group which has the inner peristome narrowly expanded, with 

 strong axial and spiral sculpture, and with the axial riblets very 

 closely spaced, in which character it differs from P. (P.) chordata 

 songoensis and P. (P.) chordata guantanamensis. 



The type, U.S.N.M. No. 367789, has 4.3 whorls remaining and 

 measures: Length, 9.0 mm.; greater diameter, 4.8 mm.; lesser diam- 

 eter, 3.8 mm. 



PARACHONDRIA (PARACHONDROPS) CHORDATA SONGOENSIS, new subspecies 



Plate 21, Figure 2 



This race was collected by Dr. Ramsden at Renter, Alto Songo, 

 Oriente. It, also, belongs to the group in which the inner peristome 

 is only slightly expanded. It is most nearly related to P. (P.) chordata 

 guantanamensis; both of these subspecies have the axial riblets dis- 

 tantly spaced, but in songoensis the spiral cords of the base are very 

 strong, which character differentiates it from guantanamensis. 



The type, U.S.N.M. No. 367767, has 4.8 whorls remaining and 

 measures: Length, 9.6 mm.; greater diameter, 6.0 mm.; lesser di- 

 ameter, 3.7 mm. 



PARACHONDRIA (PARACHONDROPS) CHORDATA GUANTANAMENSIS, new subspecies 



Plate 21, Figure 12 



This race comes from the Yateras region, Guantdnamo. It belongs 

 to the group that does not have both peristomes flaringly expanded, 



