11 



90 Sant^ommgo^Baja Cal. Aleutian Islands to Mazatlan. 



91 AnXundanHSs, very variable in form at San Diego, and 

 at Todos Santos bay; Cape Mendocino, Cal., Santo Domingo, Baja 

 Cal., small. 



92 Qw°l-sTellf Su*s?de wavy, rough, olivaceous to light brown, or 

 mottlea with white and black; average height about 2 cm, length 

 of the largest specimen seen, 10 cm; margin of shell within ot a 

 rich chocolate, center white, decorated with a lighter brown, 

 forming a figure greatly resembling an owl in many examples 



Dr R B C Stearns records from Monterey; abundant at ban 

 Diego and Todos Santos bay, and Santo Domingo, Baja Cal. 



93 Cvlichna inculta _. 



Abundant on the sandy shores of San Diego bay; Santo Do- 

 mingo, Baja Cal. 



94 Bulla nebulosa _. 



Santa Barbara, Cal., plentiful on muddy flats of San Diego 

 bay, Cal., Santo Domingo, Baja Cal., to Gulf of Cal. 



The Clouded bubble-shell is a beautiful species, attaining a 

 length of 6 cm, and a diameter of 4; the epidermis of a chocolate 

 brown, when worn off leaves a thin polished mottled shell. 



95 Haminea vesicula 



Length 20, diameter 15 mm; shell very thin and delicate, 

 color white or pale green, covered in life with a thin epidermis of 

 a light golden brown, sometimes a deeper shade. 



Santa Cruz, Cal., to Cape San Lucas. A beautiful pink form 

 observed at La Playa, San Diego; I have seen tens of thousands 

 at a time on the shores of San Diego bay; at San Quintin bay 1 

 have seen it equally abundant, of a larger size and deeper color- 

 ing, specimens an inch long being common. Abundant at Santo 

 Domingo, Baja Cal. 



96 Haminea virescens 



In crevices of rocks and interior of rock pools, abundant, 

 Santa Barbara, Cal., south to Santo Domingo, Baja Cal. 



Shell of a delicate sea-green color, as long as H. vesicula but 

 of a smaller diameter. 



97 MelampHs olivaceus 



Obconic; spire short, suture indistinct; whorls 7-9, obtusely 

 angulated on the body below the suture; aperture long and nar- 

 row, lip covered with sharp laminae within, parietal wall with 

 from 1-3 small revolving lamiaae; there is also a stout fold on 

 the columella; epidermis olivaceus, below which the color is white 

 with Datches or revolving lines of red; length 13, diameter 8 mm. 



Salinas river, Cal., to Gulf of Cal. Abundant in salt marshes 

 at San Diego; and at Santo Domingo, Baja Cal., and reported from 

 Mazatlan. 



98 Fed mes ivnisulcatus 



Found living in abundance at San Diego, Cal., with Trunca- 

 tella Stimpsonii, and at Todos Santos bay and Santo Domingo, 

 Baja Cal.; San Pedro, Cal., to Gulf of Cal. 



