54 THE NAUTILUS. 



not glossy, vinaceous-russet fading to cinnamon-brown at the 

 early whorls. First 3 whorls nearly smooth, the rest ribbed, 

 the ribs straight, narrower than the slightly striate intervals, 

 about 25 on the last whorl. The upper whorls are rather con- 

 vex, the penult somewhat and the last strongly compressed 

 laterally. The aperture is small, about one-sixth as long as the 

 shell, piriform, the light brown peristorne expanded and slightly 

 reflected. Superior lamella rather small, marginal, oblique, not 

 continuous with the spiral lamella, which is about a half-whorl 

 long. The inferior lamella is situate high, converging to the 

 superior; it ascends in a broad spiral a little past the dorsal line. 

 The subcolumellar lamella is very deeply immersed, not visible 

 in the mouth, but rather strong within the back. The principal 

 plica is rather short, dorso-lateral, its lower end visible with 

 difficulty in an oblique view in the mouth. There are quite 

 short, subparallel upper and lower palatal plicae. 



The clausilium is quite broad, curved almost in a semicircle, 

 passing without notch or excision into the filament. 



Length 13.6; diam. above aperture 2.4 mm.; length of aper- 

 ture with peristorne 2.3 mm.; 13 whorls. 



Wenchuan (Wentschuan), Szechuan, China. Type 44660 

 A. N. S. P., coll. by Mr. Steetzner, received through Dr. Bryant 

 Walker. 



The dull, strongly sculptured surface, small aperture and 

 large number of whorls are the more salient external features of 

 the species, and distinguish it from other Euphaedusae having 

 similar palatal structure, such as C. planostriata Hde. It is 

 named for the collector. 



A COLLECTING TRIP ON THE ISLAND OF OAHU, HAWAIIAN ISLANDS, 

 BY THE GULICK NATUSAL HISTORY CLUB. 



BY JOSEPH J. GOUVEIA. 



Early Sunday morning on May the 25th, 1919, we started on 

 the first trip planned by the Gulick Natural History Club. The 

 purpose of this trip was to give the members of the club an 

 opportunity to work on different lines. 



