CUBAN ANNUIjARIIDAE TORRE AND BARTSCH 255 



TUDORA (EUTUDOREX) ROCAI. new species 



Plate 23, Figure 3 



Shell elongate-ovate, moderately large, flesh colored, with a yellow- 

 ish tinge. Nuclear whorls decollated, Postniiclear whorls inflated, 

 strongly rounded, marked by slender, retractively curved, wavy axial 

 riblets, of which 137 are present on the last turn in the type. These 

 riblets are developed into auricles at the summit, and they also tend to 

 form pj'ojections at the periphery. On the early whorls these two 

 elements interlock. These riblets are about half as wide as the spaces 

 that separate them. The spiral sculpture is indicated by the waviness 

 of the axial ribs. Suture very strongly constricted. Periphery 

 inflated, strongly rounded. Base short, openly umbilicated, strongly 

 rounded, marked by the continuation of the axial ribs, which here 

 likewise are wavy and at the edge of the umbilicus it is marked by a 

 spiral series of strong scallops, which grow consecutively weaker from 

 the outer toward the inside. Two of these strong series of scallops are 

 present at the edge of the umbilicus and four are apparent on the 

 anterior half of the umbilical wall. Aperture almost circular; peristome 

 double, the inner slightly exserted and slightly reflected; the outer 

 broadly expanded, decidedly so on the inner lip, and marked by con- 

 centric laminae. On the parietal wall the outer peristome is adnate 

 to the preceding turn. Operculum typically tudorid. A breathing 

 pore is present on the parietal wall near the posterior angle, slightly 

 within the edge of the peristome. 



The type, U.S.N.M. No. 493424, was coUected by Father Koca at 

 Sitio de la Sierra, north side of the Sierra de San Andres. It has 3.2 

 whorls remaining and measures: Length, 6.3 mm.; greater diameter, 

 4.0 mm.; lesser diameter, 3.7 mm. 



This species is easily differentiated from other Eutudorex in that it 

 lacks the notch on the outer peristome of the inner lip, and in that it 

 has the peristome of the inner lip decidedly expanded. 



TUDORA (EUTUDOREX) COMPLANATA, new species 



Plate 23, Figure 1 



Shell small, ovate, flesh colored, with a yellowish tinge. Nuclear 

 whorls decollated. Postnuclear whorls very strongly inflated, strongly 

 rounded, marked by vertical, wavy axial riblets, which are a little 

 narrower than the spaces that separate them. Of these 178 are present 

 on the last whorl. These riblets become slightly expanded at the 

 summit, also on the early whorls at the periphery, where these two 

 elements interlock. The intercostal spaces are bridged by slender, 

 threadlike spiral elements which are much finer than the axial ribs. 

 Suture profoundly constricted. Periphery inflated, strongly rounded. 

 Base short, strongly rounded, openly umbilicated, marked by the con- 



