Occasional Papers of the Museum of Zoology 95 



Measurements 

 Shell Spire Aperture Whorls 



alt. maj. diam. maj. diam. alt. diam. 



B3, type, en- 

 tire(fig.71) 7.64 34(2.61) 26(2.01) 20(1.50) 99(1.49) 123^ 



B3, largest 7.10 37(2.61) 31(2.22) 22(1.56) 100(1.56) 8 



Microceramus honairensis honairensis (Smith) 



Pineria honairensis Smith (1898; Proc. Mai. Soc, III, p. 114, fig. I) ; 

 collected by Hartert. 



Type locality: Bonaire, probably near Kralendijk (Bl, 2). 



Distribution of species: Bonaire, Klein-Bonaire, Curasao, 

 and Aruba. Under superficial limestone slabs ; this species is 

 apparently next to the Pupillidae, among the smaller shells, 

 in its ability to withstand aridity. 



Distribution of subspecies: Bonaire (Bl-8) and Klein- 

 Bonaire (Kl). 



Shell (fig. xvii-74) : ovate-lanceolate; penultimate whorl 

 slightly the broadest. Color: light corneous, marked with 

 opaque, milky- white, irregular patches. Whorls: about 9; 

 quite convex ; suture well marked. Sculpture of later whorls : 

 regular, almost contiguous, quite prominent, rounded growth- 

 riblets, which are not much obscured by the relatively incon- 

 spicuous, opaque thickenings; basal whorl with slight, spiral 

 angulation, which is first evident just below the parietal angle 

 of the aperture. Embryonic whorls : corneous ; convex, with 

 impressed sutures; first half- whorl smooth and polished, re- 

 mainder with minute, regular, well-marked, and quite closely- 

 spaced growth-riblets. Umbilicus : distinctly rimate. Aper- 

 ture : subcircular, but distinctly broader than high. Peris- 

 tome : whitish; slightly thickened and reflected; incomplete; 

 thickened and most reflected on the columellar wall. Colu- 

 mella inside of whorls : slender, with a slight, spiral thickening. 



Measurements 

 Shell Aperture Whorls 



alt. maj. diam. alt. diam. 



Type (Smith, 1898) 6.0 42(2.5 ) 25(1.5 ) 8i^ 



Fig. 74 (B2) 6.49 49(3.17) 27(1.74) 112(1.95) 8*4 



