CIRKHOPODA. 437 



PoLLiciPEs, Leach, 



Where, besides the five principal valves, there are several small 

 ones near the peclicle(l), some of which, in certain species, are 

 nearly as large as the formcr(2) ; frequently there is an azygous 

 valve, opposite to the ordinary one of the same description. In the 



CiNERAs, Leach, 



The cartilaginous mantle contains but five small valves, which do 

 not occupy the whole of its extent(3). In the 



Otion, Leach. 



The cartilaginous mantle contains but two very small valves, with 

 three little grains which hardly merit that name, and has two tubu- 

 lar auriform appendages(4). 



Tetralasmis, Cuv. 



But four valves, which surround the aperture; two of them longer 

 than the others. The animal is partly confined within the pedicle, 

 which is large, and covered with hair. They are a kind of tubeless 

 Balani(5). 



Balanus, Bnig. 



The principal part of the shell of the Balani consists of a testaceous 

 tube attached to various bodies, the aperture of which is more or less 



(1) Lepas pollidpes, L., or Poll, cornucopia, Leach; Encyc. Method., pi. 266, f. 

 10, 11; Poll, villosiis, Leach, Edinb. Encyc. 



(2) Lepas mitella, Chemn., YIIl, 849, 850, Encyc. Method., pi. 266, f. 9, or 

 Polylepe couronne, Blainv., Malac; Poll, scalpellum, Chemn., VIII, p. 294, or 

 Folylepe vulgaire, Blainv., Malac, Ixxxiv, f. 4. It is the genus Scalpellum, 

 Leach, loc. cit. 



(3) Cineras vittata. Leach, Edinb. Encyc, or Lepas coriacea, Poll, vi, 20, or 

 Gymnolepas Cranchii, Blainv., Malac, Ixxxiv, 2. 



(4) Otion Cuvieri, Leach, or Lepas leponna, Poli, I, vi, 21, or Lepas aurita, 

 Chemn., V!II, pi. c, f. 857, 858. M. de Blainville unites Cineras and Otioti in his 

 genus Gymnolepa. 



(5) Tetral. hirsutus, Cuv., Moll. Anatif., f. 14. 



N.B. The LiTHOTiiiAs of Sowerby, converted by Blainville intoLiTiioLEPA, may 

 be, as is conjectured by Rang, merely an Anatifa accidentally fixed in a hole ex- 

 cavated by some bivalve- 



The Alepas, Rang, should be Anatifx, whose cartilaginous mantle is without 

 any shell whatever; I have never seen tliem- At all events, they must not be con- 

 founded with the 7'riton of Linnaeus, which was the animal of an An.atifa separated 

 from its mantle and shell. 



