616 REPORT 1863. 



676. Possibly a scaly var. of Monoceros engonatum ; like the Purpura, var. inibri* 



cata, of Europe, but of different colour and texture ; ^ spiratum, Blainv. 

 1001. Figure resembles Vexittafuscolincata, Pse. Sandwich Is. 

 Aassa, smooth, with thick lip." Cat. Is., 30 fin. [Comp. insculpta."] 



? Macron Kellettn. Cat. Is., dead, in 60 fin. 



Chrysodomus Habulatus. Cat. Is., 120 fin., young, dead. 



Fusus, " like geniculus, Conr." Farallones Is. 

 411. Trophon, like multicostatus. 



6156. Muricidea. Cat. Is., 40 fm. [The young shells called Trophon, TypJiis, 

 &c., by Dr. Cooper can scarcely be identified without a series, and from 

 tracings only.] 



515rf. ?Typhis. Sta.lBarb., 15 fm. 



520. Pteronotus centrifugus, jun. S. Pedro ; rare on beach. 



3846. Muricidea, like alveata. Mont. S. Diego. 



956. ?Siphonalia. Monterey, Sta. Barb., beach. 



In Prof. Whitney's Preliminary Report on the Survey, Proc. Cal. Ac. p. 27, 

 3Iay 4th, 1863, he states approximately as the result of Dr. Cooper's mala- 

 cological labours, up to the close of 1862 : 



No. of species in the collection 335 



Of which are new to California, and believed to be undescribed 123 



Other supposed Californian species not yet collected 65 



In a Survey conducted with such care, even negative evidence is of some 

 importance, though not conclusive. Dr. Cooper has not been able to obtain 

 the following species : 



Discina Evansii. 



Strigilla carnaria. [Mr. Nuttall's specimens were probably Atlantic.] 



Venus dispar. 



Trapezium Califomicum. [ Duperryi, Gumiacum.~\ 



Lucina bella. [Perhaps pectinata, Cpr. ; but the type seems lost.] 



Modiola miens. [Probably an error in the Cumingian label.] 



Mytilus glomeratus, u = edtdis, var." [Perhaps an accidental var. from being 



crowded on a floating stick.] 



Earbatia pernoides. [Very probably an error in Dr. Gould's label.] 

 Area multicostata. " Must have been brought to S. Diego." 

 Pecten purpuratus. [Ascribed to the fauna from abundant valves marked 



" Cal." in the U. S. E. E. collections, but certainly from S. America. Dr. 



Cooper has unfortunately not been able to discover any of the species 



described by Hds.] 



Radius variabilis. " Doubtless exotic." 

 Polinices perspicua. " Probably Mexican." 

 Eanetta triquetra. " Probably Mexican." [Guaymas.] 



105. Having now presented to the student an analysis of all that is yet 

 known of the results of public surveys, it remains that we tabulate what has 

 been accomplished by private enterprise. Mr. J. Xantus, a Hungarian gen- 

 tleman in the employ of the United States Coast Survey under the able 

 direction of Professor Bache, was stationed for eighteen months, ending July 

 1861, at Cape St. Lucas, the southern point of the peninsula of California. 

 It is a source of great benefit to natural science that the Secretary of the 

 Smithsonian Institution is also one of the acting members of the Coast Survey 

 Board ; and that a harmony of operations has always existed between the 

 directors of these two scientific agencies in Washington. The publications 

 of the Coast Survey have earned for themselves a reputation not surpassed by 

 those of the oldest and wealthiest maritime nations. For obtaining data on 

 geographical distribution, Cape St. Lucas was a peculiarly valuable station, 

 being situated near the supposed meeting-point of the two faunas (v. B.A. 



102 



