72 THE NAUTILUS. 



be " black," and lack detail, the following notes from life may be 

 useful : 



Mantle about 20 cm. long, rather light olive brown, minutely 

 reticulated with black, and blotched in an irregular but radiate 

 manner with dark brown, the blotches mostly around the shell 

 aperture. Edge of mantle black. Shell aperture 43 mm. long, 26 

 broad. Under side of mantle yellowish-white ; tentacles and adja- 

 cent parts black ; mouth light orange. Foot 65 mm. broad, sole 

 deep orange ; sides of foot dark olive brown, edge black, the black 

 grading into the brown. Epipodial ridge darkened, with round 

 white spots, the lower edge crenulated. Upper surface of shell ex- 

 posed by mantle aperture, flesh colored, with radiating riblets, 13 in 

 10 mm. measured transversely. Aperture in shell oval, 18 mm. 

 long, 13 broad; portion of animal filling shell-aperture pitch-black. 



T. D. A. COCKERELL. 



Navanax inermis (Cooper) — During July this interesting 

 animal was not uncommon on mud flats in San Pedro harbor, Cali- 

 fornia. As the published descriptions are somewhat inadequate, the 

 following notes from life are offered : 



Dark brown to black, minutely lineolate above with pale yellow 

 lines ; anterior margin of head-shield narrowly yellow or orange ; in 

 a young example a yellow line, on which are three blue spots, runs 

 back from each lateral angle. Epipodial flaps narrowly margined 

 with orange, next to which is a row of bright blue spots. Beneath 

 the animal is marked with a number of orange streaks or elongated 

 spots, giving way to light yellow lines on the sides. A pink copepod 

 lives in numbers under the epipodial flaps. 



The creature is quite variable, and at first I thought there were 

 two species, but with sufficient material all are seen to be specifically 

 identical. 



I may as well record Aglaja purpurea (Bergh) from San Pedro. 

 Dr. W. R. Coe gave me one which he found on July 20. — T. D. A. 

 Cockerell. 



Epiphragmophora Kelletji, on Santa Catalina Island 



" We found the first ones at the Canyon back of Avelon, where we 

 found the E. gabbi. In this locality there are only scattering shells 

 and we were greatly disappointed. But we made a trip to the Isth- 

 mus and there we found them in quantities. They live on and under 

 the cactus, and I have found them nowhere else. This is their 

 hybernating season of course, and they are all asleep. Sometimes a 

 dozen on one leaf, old and young. I expected to find them on the 

 fresh growing cactus leaves, but instead of that they are on the old 

 dead leaves, and under piles of dead leaves. They do not seem to 

 require moisture. I think we have found as fine specimens as are to 

 be found anywhere. — Mrs. E. M. Gaylord, July 19, 1901. 



