616 EEPOKT— 1863. 



MS. No. . . 



676. PossiWy a scaly var. of Mmoceros engmahmi ; like tie Purpura, var. !?nm- 

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

 1001. Kgure resembles VexiUafuscolineata,'PsB. Sandwich Is. 



— " Nassa, smooth, with thick lip." Cat. Is., 30 fin. [Comp. imculpta.l 



— f Macron Kelldtii. Oat. Is., dead, in 60 fm. 



— Chrysodomus Habulatus. Cat. Is., 120 fm., young, dead. 



— Fusus, " like ffenicwlus, Conr." Farallones Is. 

 411. Trophon, like muUicostattis. 



515b. Muricidea. Cat. Is., 40 fm. > [The youn^ shells called Trophon, Typhis, 

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

 tracings only.] 



515(7. ? Typhis. Sta. Barb., 15 fm. 



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



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



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



In Prof. Whitney's Preliminary Report on the Survey, Proe. 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 Califoi'nia, and believed to be undescribed .... 123 

 Other supposed Oalifornian 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 obtaiu 

 the following species : — 



Discina JEvansii. 



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



Venus dispar. 



Trapezium Californicum. \_^= Duperryi,^ Guiniacum.^ 



L>icina hella. [Perhaps =pectinata, Cpr. ; but the type seems lost.] 



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



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



crowded on a floating stick] 

 Barbatia 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. 

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



described by Hds.] 

 Padius variabilis. " Doubtless exotic." 

 Polinices perspicua. " Probably Mexican." 

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



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

 known of the fesults 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 J\ily 

 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 tho 

 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 X 



102 



