the Cirripede Subgenus Scilleelepas. oe) 2am 
drew attention to the fact that Mr. Gavey had found a new 
species of Pollictpes in the Lias, and this at that time was 
the earliest-known occurrence of the subclass Cirripedia. 
The Cirripede valves from Mickleton Tunnel, now in the 
Gavey Collection in the Geological Department of the British 
Museum, number nine in all, and, although four kinds of 
valve are represented—namely, carina, subcarina, scutum, 
and tergum,—it would appear from their ornament that all 
belong to a single species. They are undoubtedly the valves 
of a pedunculate Cirripede belonging to the family Scalpel- 
lidee, but the generic reference is not so certain. The species 
is provisionally referred to the subgenus Scillelepas of the 
geuus Calantica tor reasons given below (see p. 261 et s-q.). 
Calantica (Scillelepas) gaveyi, sp. n. 
1857. Pollicipes sp., Brodie, P. B., Brit. Assoc. Rep. (1856) pt. ii. p. 64. 
1857. Pollicipes sp., Brodie, P., B., Ann. & Mag. Nat. Hist. ser. 2, 
vol, xix. p. 103, 
Diagnosis.—Capitular valves with regular, widely-spaced, 
raised ridges or zones of growth, between which are fine 
transverse and longitudinal lines, and, especially in the lower 
two-thirds of the valves, with irregular closely-set puncte— 
a feature not noticed in any other fossil Cirripede. Carina 
tapering rapidly towards the apex. Scutum probably trian- 
gular, with almost straight widely-spaced ridges. ‘Tergum 
comparatively long and narrow, with the angles of the zones 
of growth situated less than one-third the distance from the 
carinal margin. 
Distribution. —Pliensbachian [presumably davei-zone] : 
Mickleton Tunnel, near Chipping Campden, Gloucestershire. 
Holotype.—The carina (In. 18981) figured on Pl, XIII. 
fig. 2. 
" Callen a Cailaue by the late G. E. Gavey, C.E., 
F.G.S., and now in the Geological Department of the British 
Museum, registered In. 18980-In. 18988. 
Material.—At least three individuals are represented by 
the material, which comprises two almost complete carinze and 
a fragment of another, one subcarina, five incomplete terga (of 
which three are right valves and two are left valves), and an 
impression of part of ascutum. ‘The valves are preserved as 
an intensely brittle jet-like substance. 
Measurements.—Except for the valve considered to be a 
subcarina, all the valves are somewhat incomplete, and, in 
the circumstances, to give only their actual measurements 
Als 
