General Catalogue of South African Crustacea. 569 



Among nine varieties Darwin names three from South 

 Africa — communis, venustus, and niveus — specifying Natal as 

 a locality for the first two. 

 1848. Balanus radiatus, Brug., Krauss, Die Siidafrikanischen 

 Mollusken, p. 136. 



From Natal Bay. Krauss, in Die Siidafrikanischen Crusta- 

 ceen, Malacostraca, p. 25, 1843, incidentally mentions 

 "Balanus radiatus Br." as frequent in Natal Bay, young 

 specimens being situated on the carapace, chelipeds, and 

 walking-legs of the crabs which he names Charybclis granu- 

 latus, Dehaan, Thalamita aclmete, Latreille, Thalamita prymna, 

 Dehaan, and Thalamita crenata, Latreille. Darwin explains 

 that a species, figured by Chemnitz in 1785 and described by 

 Spengler in 1790, was named Balanus radiatus by Bruguiere 

 in 1789, but that from Spengler's description it cannot be the 

 same as B. amphitrite. The latter he identifies with Lejms 

 halanoides, Poll, 1795 (not L. b., Linn., 1767), and with 

 Lepas radiata, Wood, 1815 (not B. radiatus, Brug. 1789). 

 These two names being preoccupied, the species mentioned 

 by Krauss should probably be called B. aynp)hitrite. 



Balanus ceenatus, Bruguiere. 



1789 or 1792. Balanus crenatus, Bruguiere, Encycl. Meth. (Vers), 

 vol. i., p. 168.* 



1854. B. c, Darwin, The Balanid®, p. 261, pi. 6, figs. 6a-6g. 



At p. 264 Darwin says: "It appeared to me exceedingly 

 improbable that an animal which can exist in lat. 75° N. 

 should inhabit the hot shores of Jamaica ; but subsequently 

 I have received a specimen from Prof. Krauss, collected by 

 himself in Algoa Bay, which is perfectly characterised, and 

 even has the little cells under the sheath : so that I am com- 

 pelled to admit this enormous range and capability of resist- 

 ing the most extreme chmates." 



Gen. ACASTA, Leach. 

 1817. Acasta, Leach, Journal de Physique, vol. Ixxxv., p. 69. 

 1854. A., Darwin, The Balanidae, Eay Soc, p. 302. 



* It may be mentioned that vol. i., 1792, of the Encyelopedie RWthodique con- 

 tains an introductory note to the effect that the first part (by which may be meant 

 the edition of 1789) is called on the frontispiece " Tome Sixieme au lieu de Tome 

 Premier." 



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