572 Aimals of the South African Museum. 



1900. C. d., R. Merloth, Trans. S.A. Phil Soc, vol. xi., pt. 1, p. 1. 

 " The coronet barnacle, from a hump-back whale {Mega- 

 ptera hoops)," at the Cape. 



1910. C. d., Stebbing, S.A. Crustacea, pt. 5. 



A specimen (No. 38), surmounted ])y Conchoderma 

 auritum, sent me from the Cape by Dr. Gilchrist, and 

 others from Durban, one of which was similarly occupied, 

 sent by Mr. W. H. Bell-Marley, appear to me to belong to 

 this species. One of the Durban specimens has the depressed 

 shape, of which Darwin speaks in regard to his Coronula 

 regincB (The Balanidae, Eay Soc, p. 419, pi. 15, fig. 5; pi. 16, 

 fig. 4). It seems doubtful whether C. regince is really distinct 

 from G. diadema. 



* Coronula darwini, n.n. 

 1854. Coronula balanaris, Darwin, The Balanidae, Eay Soc, 

 p. 415, pi. 15, figs. 2, 26, pi. 16, figs. 3, 5. 

 Darwin says: "I have examined nine sets of specimens 

 having localities attached to them : three from off New South 

 Wales ; two off the Cape of Good Hope ; two from the west 

 coast of South America ; and two marked only ' South Sea.' 

 Hence I am led to conclude that this species is confined to 

 the southern hemisphere, or if it extends into the northern 

 hemisphere, it is probably only in the Pacific Ocean. I do 

 not believe (though so stated in some works) that this species 

 occurs on the shores of Europe." Now, Darwin begins his 

 synonymy of this species with " Lepas bal^enaris, Gmelin, 

 Systema Naturae (1789)." That reference would more properly 

 run as Lepas halcenaris, O. F. Miiller, Gmelin's Systema 

 Nature, ed. 13, vol. i., pt. 6, p. 3208 (1790). But Gmelin's 

 synonymy identifies the species with Miiller's L. b., in the 

 Zoologiae Danicae Prodromus, No. 3024, p. 250 (1776), and 

 with the same species in " 0. Fabr. Fn. groenl, p. 425, n. 425" 

 (1780). His reference to " Bmnj^f mus, t. 14, /H.," is of no 

 importance since the figure of a Coronula in the edition of 

 1705 is taken from a specimen supplied by Dr. D'Aquet, not 

 necessarily of oriental origin. Gmelin ends the description of 

 L. balcenaris with the reasonable inquiry, *' an forsan eadem 

 cum diademate ?" There can, however, be no reasonable doubt 

 that Darwin's C. balcenaris "attached to whales in the Southern 

 Ocean," is distinct from C. diadema and diadema's not improb- 

 able synonym C. balcenaris (Miiller). I, therefore, associate 



