224 PROCEEDINGS OF THE CALIFORNIA 



Genus Teophon, Montfort. 

 Trophon triangulatus, Cpr. n. s. State Collection, No. 580, a. 



T. t. parva, tenui, alba, postice lata, antice attenuata ; anfr. nucl. ii. minutis, 

 laevibus, attenuatis, vertice declivi, celato ; norm. (t. adolescente) iv. subtrian- 

 gulatis, postice tabulatis, axi fere rectangulatis ; suturis acute impressis ; antice 

 rapidissiine angustatis, canali longa, arcuata ; varicibus circ. vii. laminalis, acu- 

 tis, ad angulura in spinam apertam compressis, spinis radiantibus, parum superne 

 arcuatis ; linea seu angulo obsoleto peripheriali, suturam continuante ; apertura 

 pyriformi ; labro antice haud indentato. 



Long. 0-35, long. spir. 015, lat. 0-15, div. 70°. 



Hab. Catalina Island, 60 fin.; 4 alive, of equal size, Cooper. 



Resembles the young of Murex centrifuga, Hds., and is related to Trophon 

 muricatus, Hds. 



Besides the above species, which were entirely new to science, the fresh and 

 perfect specimens collected by Dr. Cooper, on the Survey, from authentic locali- 

 ties have enabled me to make out and complete the diagnoses of many species 

 first found indeed by other naturalists, but in such poor condition, or with 

 such uncertainty of habitat, that it would have been unsafe to have ventured 

 on their description. 



Regular Meeting, September, 18th, 1865. 



President in the chair. 



Seven members present. 



Mr. P. M. Randall was elected a resident member. 

 Donation to the Cabinet : Specimen of Aplodontia leporina, shot 

 near Lake Tahoe, by Mr. J. M. M'Donald. 



Regular Meeting, October, 2d, 1865. 

 Mr. Fisk in the chair. 



Seven members present. 



Donations to the Library : Proceedings of the Royal Horticul- 

 tural Society, Vol. IV, No. 12 — Correspondenzblatt des Naturf. 

 Vereins zu Riga, 14 te Jahrgang. Mittheilungen aus dem Osterlande 



