VERRUC1D/E. 495 



B.radiatusis too briefly described byRisso ('Hist. Nat.de l'Europe Merid.,' 

 tom.iv, 1826), without a figure, to be recognised; it probably is not the B. 

 radiatus of Spengler, Wood, and other authors. 



B. goissopomo, l&vis, and radiatus, are mere names without any description, 

 published in a Catalogue by E. Hoeninghaus, in the 'Jahrbuch fur Mineral. 

 Geog.,' &c, 1831, p. 155. 



B. hmnilis. Conrad, in the ' American Journal of Science,' vol. ii (N. S.), 

 p. 400, 1846, has given a short description, with a woodcut, of this species, 

 from the upper Eocene of Florida. The opercular valves are not descrrb^c^and^ 

 I doubt whether the species could be recognised. 





2. Family — Verrtjcid^e. 





Cirripedia without a peduncle : scuta and terya, not fur- 

 nished with depressor muscles, moveable only on one side, on 

 the other side united immoveably with the rostrum and carina 

 into an asymmetrical shell. 



The one genus herein contained differs so considerably 

 from all the others in the Order, in the extraordinary un- 

 equal development of the two sides of the shell, that I have 

 instituted a Family for its reception. If compelled to place 

 it in one of the foregoing families, I should with much 

 hesitation rank it in the sub-family Chthamalinae, rather 

 than amongst the Lepadidse ; for it is destitute of a 

 peduncle, and has a shell, though a very different one from 

 that of any true sessile cirripede. In the interfolding 

 sutures which may be considered as representing radii or 

 alse, in the basis being divided into concentric slips, and in 

 the whole of the basis being attached to the supporting ob- 

 ject, this same line of affinity is clearly manifested. On the 

 other hand, in the general shape, manner of growth, and 

 kind of articulation of the scutum and tergum, there is so 

 close an approach to the Lepadidse, that had I seen these 

 very important valves separately, I should certainly have 

 concluded that they had come from a Pollicipes, allied to 

 certain Cretacean fossil species, &sP.fallax and eleyans ; 

 it likewise, perhaps, deserves notice, that the upward 

 growth of the rostrum, in Verruca nexa, is a peculiarity 



