Cooke — Hazvaiiaii Zoiiitidac and Succincidae 275 



Catinella paropsis new species. PI. XXA\ 3. 



The shell is rather flat, ellipsoidal in outline, slightly flattened at the 

 sides, rather thick, nearly opaque, dull, and of a dark olive-buff color. 

 Whorls about i^, the spire immersed. The last whorl is somewhat convex 

 above, its dorsal surface minutely striate with concentric lines of growth 

 and in addition marked with faint, broken, slightly radiating shallow sulci, 

 which are also visible when viewed fronf within. The aperture occupies 

 nearly the whole of the ventral side, its outer margin slightly undulating 

 and edged by a narrow dark line. The parietal wall is furnished with a 

 rather broad long plate which terminates within the outer wall of the 

 aperture and is separated from its margin by a deep sinus. 



Length 11.7, diameter 7.5 mm. 



Oahti : Kaipapau, near the summit of the Koolau Range 

 (Cooke). 



Type No. 19307, paratypes No. 19410, Bishop Museum, and 

 also in the Academy of Natural Sciences of Philadelphia. 



So far as known this species is entirely terrestrial in its 

 habits ; all the specimens were found on very damp dead leaves. 

 This species is extremely rare ; the collection of the Bishop ]\Iuseum 

 has only four lots from different colonies numbering altogether 

 15 specimens, most of which are immature. These were found in 

 dark and damp heads of ravines near the summit of the Koolau 

 Range between Punaluu and Kaliuwaa. 



Catinella f^arof^sis is entirely distinct from any of the species 

 already described from the Territory of Hawaii. Its closest rela- 

 tives (except the following species Catinella titbereiilata) appear to 

 be the extremely flat Catinella explanata and Catinella rnbida from 

 the island of Kauai. From these it differs in the greater convexity 

 of the last whorl, the thickness of the shell, and the peculiar radiat- 

 ing dorsal sulci. 



Catinella tuberculata new species. PI. XXV, 2. 



This species is represented in the Bishop Museum by two 

 specimens. One is of about the same color as Catinella paropsis 

 (dark olive-buff), the other, the type, is of a slightly darker shade. 

 Catinella tuberculata is easily distinguished from Catinella paropsis 

 by its tuberculate surface, the tubercules being formed by wrinkled 

 anastomosing sulci, which are so deeply impressed into the structure 

 of the shell that the inner surface of the aperture is distinctly 



[is] 



