234 PKOCEEDINGS OF THE NATIONAL MUSEUM Vol.89 



strongly developed, the axial ribs slender and sublamellar, and the 

 brown spiral bands merely indicated. 



The specimen figured, U.S.N.M. No. 367779, which was collected 

 by Gundlach at El Morro de Santiago, has 4.8 whorls remaining and 

 measures: Length, 16.0 mm.; greater diameter, 8.2 mm.; lesser 

 diameter, 7.0 mm. 



PARACHONDRIA (PARACHONDROPS) ERECTA TURQUINENSIS. new subspecies 



Plate 20, Figure 3 



This race was collected by Jeanneret on Pico Turquino. It differs 

 from the other races in having the axial riblets much less strongly 

 elevated and less strongly developed and much more closely approxi- 

 mated, with the spiral sculpture much enfeebled, almost obsolete on 

 the last turn. The whorls are also a Uttle more inflated and very 

 conspicuously denticulated at the summit. The interrupted spiral 

 color bands are moderately strong. The last whorl is slightly solute. 



The type, U.S.N.M. No. 367781, has 5.1 whorls remainmg and 

 measures: Length, 13.8 mm.; greater diameter, 7.1 mm.; lesser 

 diameter, 6.0 mm. 



PARACHONDRIA (PARACHONDROPS) LURIDA ([Gundlach] Pfelffer) 



Plate 21, Figure 13 



1858. Cyclostoma lurida Poey, Memorias sobre la hlstoria natural de la isla de 



Cuba, vol. 2, pp. 4, 12, nomen nudum. 

 1858. Cyclostoma luridum [Gundlach] Pfeiffer, Malakazool. Blatter, vol. 5, 



pp. 45-46. 

 1865. Tudora lurida Pfeiffer, Monographia pneumonopomorum viventium, 



Suppl. 2, p. 137. 

 1920. Parachondria (Parachondrops) lurida Henderson and Bartsch, Proc. 



U. S. Nat. Mus., vol. 58, p. 67. 



Shell elongate-conic, pale yellow, the interior pale yellow, the peri- 

 stome flesh colored. Nuclear whorls decollated in all our material. 

 Postnuclear whorls moderately well rounded, narrowly shouldered at 

 the summit, marked by feeble, slightly retractively slanting axial 

 riblets, which become expanded to form hollow tufts at the summit. 

 These tufts are not all of the same size and are rather irregularly 

 developed. In the specimen described and figured, 80 axial riblets 

 occur upon the first of the remaining turns, 100 upon the second, 110 

 upon the third, and 104 upon the last. The spiral sculpture consists of 

 slender, low, rounded threads, of which 6 occur upon the first and 

 second turns, 8 upon the third and fourth, and 9 upon the last, between 

 the summit and the suture. The junctions of the axial riblets and the 

 spiral threads form slender, elongated nodules, which have their long 

 axis parallel with the axial sculpture, while the spaces enclosed between 

 them are more or less rectangular, shallow areas. Suture strongly 



