2 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 82 



Remarks. — As shown by the figures, this species is related to C. 

 iheHngl Marshall, but is much smaller, and more ovate. Like others 

 from this general region, this species shows a tendency to have the 

 whorls shouldered, the body whorl inflated, and the length of the 

 shell in proportion to diameter to become less. It is related also to 

 C. iulloides Orbigny. 



Plate 1, Figure 6, shows the color marking revealed by removal of 

 the periostracum of a paratype (U.S.N.M. No. 414164). 



CHILINA IHERINGI. new species 



Plate 1, Fioitie 8 



Shell large, inflated, ovoid. Spire short, apex lost. Body whorl 

 very large, about seven-tenths of the length of the shell, subcylindri- 

 cal, its outer wall nearly vertical, slightly shouldered. Axial sculp- 

 ture consisting of fine incremental threads, the longer rest periods 

 emphasized by greater strength and deeper color. Spiral sculpture 

 of irregularly spaced impressed lines and crude riblets, which become 

 more prominent on the basal area. Surface slightly malleated. 

 Suture crenulated. Color light olive-yellowish with four revolving 

 bands of reddish, the upper one well marked, the others hardly 

 visible except when viewed through the shell by transmitted light. 

 Aperture very long, its outer wall slightly compressed, outer lip 

 thin. Interior whitish, the external bands showing through, espe- 

 cially if held up to the light. Columella straight, stout, broad, 

 white, with a strong entering fold at its upper part. A false um- 

 bilicus formed by the reflecting of the left margin of the columella. 

 Parietal wall with a thin callus. 



Type. — The type (U.S.N.M. No. 414166) measures : Length, 45 mm ; 

 diameter, 27 mm ; length of aperture, 30 mm. It and two paratypes 

 (U.S.N.M. No. 363765) come from Lake Todas Santos, Province of 

 Llanquihue, Chile, received from Dr. H. von Ihering. This lake is 

 on the Pacific side of the Andes and drains into the Gulf of Cor- 

 covado. A fourth specimen (U.S.N.M. No. 362988) was received 

 from Dr. F. Felippone, with the general locality, Chile. It is almost 

 an exact counterpart of one of the paratypes and probably came 

 from the same locality. 



R&tnarks. — Until lately the author regarded this as an optimum 

 condition of the inflated form of C. oldroijdae Marshall. The great 

 size of C. iheringi and the different locality indicate that they belong 

 to two species or to two subspecies of the same original stock. 



