8§ SUPPLEMENT TO THE CRAG MOLLUSCA. 
CapuLus unearicus, Linn. Crag Moll., vol. i, p. 155, Tab. XVII, figs. 2 a—g. 
Localities. Cor. Crag, Sutton, Ramsholt, and near Orford. Red Crag, passim. Fluvio- 
marine Crag, Bramerton (Woodward). “Middle Glacial, Hopton. 
All the above localities for this shell are within my own knowledge except the Fluvio- 
marine of Bramerton, where, according to Woodward’s list in White’s ‘ Directory,’ is said 
to occur small and rare. ‘The specimens from the Middle Glacial are very young ones. 
CapuLus recurvatus, 8. Wood. Crag Moll., vol. i, p. 156, Tab, XVII, fig. 3 7 (as 
C. militaris, Mont.). 
Locahties. Cor. Crag, Sutton, and near Orford. Red Crag, Walton, Sutton, 
Newbourn, and Waldrinefield. 
‘The name of mlitarts given by Montagu to our species being posterior to that given 
by Linné to a different shell inhabiting the West Indies must be abandoned. I, there- 
fore, fall back upon the name recurvatus given in my Catalogue of 1842, for the specimen 
shown in fig. 3 fof Tab. XVII, of ‘Crag Moll’ Figs. 3 6, ¢, d, may be the young of 
C. ungaricus. ' 
Mr. Bell has described in the ‘Annals and Mag. Nat. Hist.’ for September, 1870, 
a sheil from the Red Crag of Waldringfield as a new species under the name of C. cncertus, 
the specimen of which he kindly submitted to me. He has also (‘ Ann. and Mag.,’ 1871) 
given the name Broccha sinuosa to the shell shown in ‘Supplement,’ Tab. VIL, fig. 26 a, 6, 
which may be the same as Patella sinuosa, Brocchi. In the monograph of the ‘ Crag 
Moll.’ I showed one of these sinuous forms of the Capulide, under the name var. partin 
sinuosus of C. militaris, regarding it as an accidental variation due possibly to the 
adherence of the shell to a Pecten. Looking at the various forms figured by Prof. 
Salvatore Bionde (‘ Estr. dag] Atti dell Acad. Gioenia de Sc. Nat.,’ Vol. XLX, Sec. Series, 
1864) in his monograph of the so-called Genus Brocchia, and at the specimen figured in 
‘Supplement,’ ‘Tab. VII, I must admit that the idea.of an adherence to a Pecten will not 
explain these features. Bionde’s figures of some twelve forms under the generic name 
Brocchia show one or more sinuosities in each, but they are not all in the same part of 
the shell nor in the same direction. Neither do they appear in the young shell, but only 
upon that part of the shell which must have been formed after the animal was half 
crown; and, however caused, suggest the idea that these peculiar. features are due to 
some accidental circumstances besetting the growth of certain individuals of the genus 
Capulus. Under these circumstances I do not see my way to the adoption of the genus 
Brocchia until further investigations, especially on living forms if such be discovered, 
have demonstrated that this testaceous covering pertained to an animal generically 
