NEW ANTILLEAN MOLLUSKS — REHDER 199 



BARTSCHIA, new genus 



Shell large, solid, elongate-ovate. Nucleus dome-shaped, consist- 

 ing of 314 smooth whorls. Postnuclear whorls sculptured with 

 crowded spiral cords crossed by close axial riblets, which give the 

 surface a closely nodulose appearance. Aperture pointed at the 

 posterior angle, and broadly channeled at the anterior end. Anterior 

 canal somewhat recurved. Outer lip internally thickened, the thick- 

 ening bearing a row of denticles. Columella and parietal wall 

 covered by a smooth callus. 



Type : Bartschia significant, new species. 



rhis group has recently been assigned to Metula by Clench and 

 Aguayo (see below under description of genotype), but it does not 

 belong to that genus. The type of Metula H. and A. Adams, 1853, 

 must i-e M. clatltrata Adams and Reeve (subsequent designation, 

 Kobelt. Illustr. Conchylienbuch, vol. 1, p. 38, 1876), a Panamic species 

 (see Tomlin, Journ. Conch., vol. 18, No. 6, p. 160, 1927). Woodring 

 now believes that his conclusion as to the type of Metula (Carnegie 

 Inst, Washington Publ. 385, p. 286, 1928) was unfortunate and that 

 a tautonymic type designation cannot strictly and validly be main- 

 tained. The Metula of Woodring (op. cit., p. 285) and other authors 

 is here given the new name Antemetula Render; gentoype : Buccinvm 

 metula Hinds. 



From this group Bartschia differs in its larger size and broader 

 aperture, which is not attenuated anteriorly, and in possessing a 

 blunt nucleus. From Metula our genus differs in being: more fusi- 

 form, with a longer spire and shorter, broader aperture not anteriorly 

 attenuated. 



It is with much pleasure that I name this striking group for my 

 mentor and colleague, Dr. Paul Bartsch, whose Antillean explora- 

 tions have so greatly advanced our knowledge of this region. 



BARTSCHIA SIGNIFICANS, new species 



Plate 20, Figure 17 



Shell large, solid, elongate-ovate. Nucleus bulbous, smooth, of 2>y^ 

 whorls. Postnuclear whorls about 5 1 A, convex, sculptured by closely 

 spaced spiral cords (8 on the first postnuclear whorl), crossed by 

 regular axial riblets, which gives the first 2% whorls a latticed 

 appearance; thereafter finer spiral threads begin to be intercalated 

 between the cords until on the last whorl the spiral cords are of 

 irregular varying strength. Color yellowish white, irregularly macu- 

 lated with varying shades of light chestnut. Last whorl descending 

 but rising again at the aperture where there is a low broad external 



