312 PROCEEDINGS OF THE NATIONAL MUSEUM Vol.89 



ANNULARIA (EUTUDORISCA) CAMOENSIS, new species 



Plate 34, Figure 2 



Shell very broadly conic, pale orange, with a little paler tip and with 

 interrupted spiral bands of brown; the peristome is pale yeUow, whUe 

 the interior of the aperture is orange. Nuclear whorls amost 2, well 

 rounded, microscopically granulose, except for the last portion of the 

 last turn, which shows the beginning of the postnuclear sculpture. 

 Postnuclear whorls strongly inflated, strongly rounded, marked by 

 incremental lines and by 8 spiral threads on the first and second turns, 

 13 on the tliird, and 20 on the last. The first two spirals near the 

 summit are rendered finely serrated by the axial threads. The spiral 

 threads vary in strength, the intercalated ones being always weaker 

 than the stronger ones, between which they occur. Suture strongly 

 impressed. Periphery strongly rounded. Base rather short, inflated, 

 strongly rounded, marked by 21 spiral threads of varying strength, 

 those near the umbilicus being finely denticulated. The umbiUcal 

 wall is marked by rather rough incremental fines, which assume almost 

 the strength of axial riblets, and by 20 spiral threads. Last whorl 

 solute for about one-fifth of a turn. Aperture broadly ovate ; peristome 

 simple, moderately broad, flaringly reflected, narrower on the posterior 

 half than the anterior. Operculum typically annularid. 



The type, U.S.N.M. No. 356370, was collected by Mr. Henderson at 

 Loma de Camoa, Habana Province. It has 5.6 whorls and measures: 

 Length, 15.2 mm. ; greater diameter, 1 1.8 mm. ; lesser diameter, 9.3 mm. 



ANNULARIA (EUTUDORISCA) AGASSIZI ([Charpentier] Pfeiffer) 



Plate 34, Figure 4 



1852. Cistula agassizii [Charpentier] Pfeiffer, Catalogue of Phaneropneu- 



mona ... in tlie British Museum, p. 183. 



1853. Cyclostoma agassizii Pfeiffer, Martini-Chemnitz ConchyHen Cabinet, 



vol. 1, sect. 19, pp. 280-281, pi. 38, figs. 1, 2. 

 1863. Chondropoma agassizi Reeve, Conchologia iconica. No. 64. 

 1920. Eutudora (Eutudorella) agassizii Henderson and Bartsch, Proc. U. S. 



Nat. Mus., vol. 58, p. 78. 



Shell almost turbinate, yellow, with the peristome and the interior a 

 little paler, and with the spire and base marked by interrupted spiral 

 bands of brown, which are narrow and distantly spaced. Nuclear 

 whorls almost 2, well rounded, microscopically granulose, except 

 the last portion of the last turn, which shows the beginning of the 

 postnuclear sculpture. Postnuclear whorls inflated, strongly rounded, 

 marked by sublamellar spiral threads, of which 8 occur on the first 

 and second turns, and 15 on the last between summit and suture. The 

 spiral threads near the summit show indications of fine serrations due 

 to their being crossed by lines of growth. Suture narrowly channeled, 



