616 REPORT—1863. 
MS. No. 
576. Possibly a scaly var. of Monoceros engonatum ; like the Purpura, vay. imbri- 
cata, of Europe, but of different colour and texture ; ?=spdratum, Blainy. 
1001. Fieure resembles Vewilla fuscolineata, Pse. Sandwich Is, 
—  Nassa, smooth, with thick lip.” Cat. Is., 80 fm. [Comp. inseulpta. ] 
— ?Macron Kelletivi. Cat. Is., dead, in 60 fm. 
— Chrysodomus ?tabulatus. Cat. Is., 120 fm., young, dead. 
— Fusus, “like geniculus, Cony.” Farallones Is. 
411. Trophon, like multicostatus. 
5156. Muricidea. Cat. Is., 40 fm. [The young shells called Trophon, Typhis, 
&e., by Dr. Cooper can scarcely be identified without a series, and from 
tracings only. | 
515d. PTyphis. Sta. Barb., 15 fm. 
520. Pteronotus centrifugus, jun. S, Pedro; rare on beach, 
384). Muricidea, like alveata. Mont.—s. Diego. 
956. PStphonalia. Monterey, Sta. Barb., beach, 
In Prof. Whitney’s Preliminary Report on the Survey, Proc. Cal. Ac. p. 27, 
May 4th, 1863, he states approximately as the result of Dr. Cooper’s mala- 
cological labours, up to the close of 1862 :— 
No, of species n“theteollectiOm 6% Were), VL ernnals soe tieleem ele 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 Evansiv. 
Strigilla carnaria. {Max. Nuttall’s specimens were probably Atlantic. ] 
Venus dispar. 
Trapexium Californicum. [= Duperryi,= Guiniacum.] 
LIncina bella. gree =pectinuta, 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. ] 
Arca multicostata. “ Must have been brought to 8. Diego.” 
Pecten purpuratus. [Ascribed to the fauna from abundant yalves marked 
“Cal.” in the U.S. I. Is. collections, but certainly from 8. 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.” 
Ranella 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 Suryey 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. 
