46 THE NAUTILUS. 



NOTE ON BULIMUS HANLEYI AND B. CORONATDS. 



BY H. A. PILSBRY. 



The two Brazilian species mentioned above are thin, unicolored, 

 glossy shells, with the spire long, suture crenulated, columella simple 

 and foldless, and the outer lip thin and acute. B. Haiileyi Pf'r. was 

 (with B.recluzinnus Pf'r.) placed in a new suhgeuus, 0.n/f/ //t/ N ' 

 by Albers in 1850; but von Martens in 1860 referred it to Or/ilnm*. 

 B. i-ni-iintitn* Pfr. was placed by Albers in Leptomenis, but von 

 Martens transferred the species to Peronceus, where it has been re- 

 tained by subsequent authors. 



The characters of the apical whorls show at once that the refer- 

 ence of the species to Leptoments (a section of Eulimulus) is errone- 

 ous ; while the structure of the columella and the texture of the shell 

 equally remove the species from Perontru*. 



The texture of the shell is that of such South American Stenogy- 

 roid species as J5. cakareus Born and B. cuneus Pfr., etc. which have 

 been called Obeliscus, but for which the name NEOBELiscus 2 is now 

 proposed. These, however, have a bulbous, more or less costulate 

 apex, without apical dimple. 



For B. Hanleyi and B. cornnatus, we suggest the name SYXAP- 

 TKRPES, the former species being the tvpe. The conchological feat- 

 ures of the new group are : an oblong-turrited, thin, glossy, more or 

 less vitreous shell with crenulated sutures, rather obtuse (but not 

 bulbous) nuclear whorl with comma-shaped apical dimple, the aper- 

 ture long-ovate with thin, sharp outer lip and simple columella, not 

 truncate below, its edge narrowly reflexed above. 



I do not know that any species except the two mentioned belong 

 to this group. Its systematic position, if we judged by shell char- 

 acters, would seem to be in the Achatinidcs near Neobelisciis: but if 

 Binney's identification 3 is correct, the jaw and dentition are consider- 

 ably like those of some forms of the genus Strophoeheilus, and, there- 

 fore, as far as their testimony goes, indicate a position for the group 

 in the Helicidce. 



1 Not Oxyfhilui'Fiti., 1S33, nor Oxychcila Dej., 1825. 



2 OMistus was restricted by Gray in 1847 (P. Z. S., p. 17ti) to /?. ,'/-tus,itns 

 GineL.a Mu'la^i-rursprcies for which the name Clavator was prop.fcl in I860. 

 Humphrey* had pruvicmsly u-rd Obtliscus in another sense. 



'See under Orphans Haiileyi Pfr., in Annals of the N. Y. Acad.. Sri.. Ill, 

 j>. 115, pi. xi. tig. I.) I. jaw and dentition). 



