238 



BULLETIN 93, UNITED STATES NATIONAL MUSEUM. 



Specimens in collection of the Academy of Natural Sciences of 

 Philadelphia are from inlets of Charleston Bay (T. Say, type of C, 



^;^v*i 



":.. * ,* 'S'-bf 



FIG. 75. BALANUS GALEATUS. a, SEVENTEENTH SEGMENT OP CIRRUS vi. b, c, WALLS OF 



TWO INDIVIDUALS ; ALL FROXI ALBATROSS STATION 4432, SANTA ROSA ISLAND, CAL. 



elongata) ; Edisto Island, South Carolina (Edw. Hopkinson) ; south- 

 west coast of Florida (Joseph AVillcox). 



BALANUS CALCEOLUS Darwin. 



1854. Balanus calceolus DAKVIN, Monograph, p. 21S, pi. 3, figs. Sa-e. 



Distribution. West coast of Africa; Tuticorin, near Madras; 

 Coralline Crag, England (Darwin). 



Specimens from Albatross station 5145, latitude G 04' 30" north; 

 longitude 120 59' 30" east, vicinity of Jolo, Sulu Archipelago, in 23 

 fathoms, agree in the main with Darwin's description, and I have no 

 doubt belong to the same species. I could find no pores in the basis, 

 but in B. galeatus I have found this character variable. 



Conoplea ovata Gray, 1 which Darwin places as a synonym of B. 

 calceolus with a mark of doubt, was defined only by the words " The 

 base ovate, Africa," and nothing further is known of it. Ellis, who 

 is quoted as authority for B. calceolus, was polynomial in his nomen- 

 clature, and although he published in 1758 his work gives no evidence 

 that he understood the Linnsean system of nomenclature. The species 

 attributed to him should be ascribed to Darwin, who first used the 

 names in binomial combinations. 



> Annals of Philosophy, new ser., vol. 10, 1825, p. 103. 



