LORQUINIA 
67 
Lacuna (sp. indet.) One or more species. 
Leptothyra paucicostata Dall. Rare. 
baccula Carpenter. Very common. 
Liotia acuticosta Carpenter. Three specimens. 
fenestrata Carpenter. Two only. 
Mangilia (sp. indet.) At least two species of this difficult genus were 
taken. 
Marginella californica Tomlin. Rather scarce. 
jewettii Carpenter. Rare. Five specimens. 
pyriformxis Dall. Three shells found. 
Megatebennus bimaculatus Dall. Three small specimens. 
Milneria minima Dall. Fairly plentiful. 
Mitramorpha aspera Carpenter. Two examples. 
filosa Carpenter. Not common. 
Odostomia eucosmia Dall and Bartsch. Two only. 
donilla Dall and Bartsch. Rather scarce. 
helga D3II and Bartsch. Fairly plentiful. 
nota Dall and Bartsch. Roots of eel grass. 
oldroydi Dall and Bartsch. Rare. 
pedroana Dall and Bartsch. One example. 
phanella Dall and Bartsch. Rare. 
pulcia Dall and Bartsch. One of the commonest Odostomias. 
subturrita Dall and Bartsch. Roots of eel grass. 
virginaHs Dall and Bartsch. Common. 
Pecten giganteus Gray. One young specimen. 
Pedipes unisulcatus Cooper. Two from the drift. 
Purpura nuttallii Conrad. Fairly common. 
Phacoides californicus Conrad. Dead pairs common. 
Phasianella compta Goidd. Not plentiful. 
pulloides Carpenter. Rare. One specimen only. 
Rissoina dalli Bartsch. Three taken. 
kelseyi Dall and Bartsch. Two examples. 
Seila montereyensis Bartsch. Six or eight foun 1. 
Serridens oblongus Carpenter. Found in and under the mantle of 
Ischnochiton conspicuus only. It appears to be commensal. 
Siphonaria (Williamia) poltoides Carpenter. One example. 
Triphoris pedroana Bartsch. A rather scarce species. 
Tritonalia circumtexta Stearns. Plentiful. 
gracillima Stearns. Not common. 
Tornatina cerealis Gould. Apparently rather rare. 
Truncatella stimpsoni Stearns. No living specimens found. 
Turbonilla buttoni Dall and Bartsch. Several shells doubtfully re- 
ferred to this species. 
laminata Carpenter. Two found. 
muricatoides Dall and Bartsch. One example probably belongs 
under this head, 
tenuicula Carpenter. The commonest Turbonilla found. 
