312 
CIRRIPEDES IN THE NORWICH MUSEUM. 
most kindly lent me for examination ; in which, taken 
together, the scuta, terga, carina, upper and carinal latera, 
are seen almost in their proper places. In Mr. J. Sowerby’s 
Collection there is a single scutum, 6 also, from Norwich.” 
These two specimens are still preserved in the Fitch Col- 
lection (Norwich Museum). One [2136] represents the right 
side of a capitulum, and consists of four valves, namely, the 
carina, scutum, tergum, and upper latus. The other [2137] 
shows the left side of a capitulum and also consists of four 
valves, namely, the carina, scutum, tergum, and carinal 
latus, the upper latus not being present. 
Darwin’s figure (fig. 4a-e) therefore represents the specimen 
showing the right side of the capitulum, with the addition of 
the carinal latus, in a reversed position, from the second 
specimen. 
Portion of right side of capitulum (Cotype, figd., p. 24, pi. i., 
figs. 4a-d) [2136] 
„ „ left „ „ „ (Cotype, figd., p. 24, pi. i„ 
fig. 4e) [2137] 
Holotype . — I here select as holotype the specimen showing 
the right side of the capitulum (figs. 4a-d), registered [2136], 
5 Scalpellu?n maximum (J. de C. Sowerby). 7 
Carina. Darwin mentions (op. cit., p. 28) that the largest 
carina of this species in the Fitch Collection measures nearly 
1| inches. This specimen is registered [2155]. 
6. This valve, a right scutum, is in the British Museum (Natural 
History), registered I. 13653. 
7. J. de 0. Sowerby (1829, Min. Conch., Yol. VI., p. 222, pi. 606, 
figs. 3-6) figured four detached valves under the name Pollitipes 
maximus. Subsequently, Darwin (1851, Pal. Soc. Monogr. Lepadidae, 
pp. 26-28) referred the carina (fig. 4), a tergum (fig. 6) [B.M., I. 13655], 
another tergum (fig. 3) [B.M., I. 13654], to the genus Scalpellum ; the 
remaining tergum (fig. 5) [B.M., I. 13652] being indeterminable. He 
then figured and described the carina (op. cit., pp. 27, 28, pi. ii., 
fig. 1) as the type of the typical variety of S. maximum — S. maximum , 
var. typicum. This valve is in the British Museum (Natural History), 
registered I. 13658. 
