(sect, f), balantjs hameri. 277 



Section r. 



Parietes and radii not permeated by pores ; basis some- 

 times permeated by pores, sometimes not permeated, some- 

 times excessively thin and hardly distinguishable. 



32. Balanus hameri. PL 7, fig. 5 a — 5 c. 



Lepas hameri Ascanius. Icones rerum naturalium, Tab. 10, 1767. 



— tulipa. 0. F. Mutter. Prodromus. Zoolog. Dan. 1776 ; sed 



non L. tulipa, in Poli, Test. nt. Sicilian ; necnon B. 

 tulipa, in Bruguiere, Encyclop. Method; necnon 

 B. tulipa, in Sowerby, Genera of Shells. 



— tulipa alba. Chemnitz. Syst. Conch. Tab. 98, fig. 832. 



— poliacea. Spengler. Skrivter af Naturhist. Selskabet, 1 B. 



1790. 

 ^ Balanus candidus, (Tab. emendata) Brown. Conch. Great Britain 



(1827), Tab. 6, figs. 9 and 10, et 2d edit. 

 Tab. 51, figs. 9—12. 



— tulipa. Lyell* In Phil. Transact., 1835, p. 37, Tab. 2, 



figs. 31—39 



Shell white : radii with their oblique summits smooth and 

 arched ; sutural edges smooth : basis solid. Scutum feebly 

 striated longitudinally : tergum loith the spur narrow. 



Hab. — Coast of Yorkshire ; Scotland ; Galway, Ireland ; Isle of Man, and 

 Anglesey, twelve fathoms. Generally in deep water; not very common. 

 George's Bank, Massachusetts, United States ; Mus. Aug. Gould. Iceland, 

 Finmark, and the Faroe Island, according to Spengler. Attached to Crustacea, 



* Sir C. Lyell remarks that this is apparently the B. Uddevallensis (Linn.) of 

 Swedish lists of fossils. Prof. E. Forbes has shown (Mem. Geolog. Survey of 

 England, vol. 1, p. 361) how this name arose, from a short description, prior to 

 the introduction of the binomial system, " Lepas quse Balanus Uddevallensis," 

 given by Linnaeus in his Wast-Gotha Besa, in 1747. 



For the reference to Ascanius' work, which is on the binomial system, and 

 subsequent to the 10th edit, of Linnaeus, in 1758, 1 am greatly indebted to Mr. 

 Sylvanus Hanley. Had it not been for this gentleman, I should have used 

 Muller's name of B. tulipa as the first name. 



