CIRRIPEDES IN THE NORWICH MUSEUM. 
309 
reversed. At the top of each plate of Darwin’s Monograph 
appears the legend — “ In every case right-hand Scuta and 
Terga are figured ; hence the occludent margins are always to 
the left-hand.” This, however, only means that the specimens 
are represented in the figures as right-hand valves, and does 
not necessarily mean that they really are right-hand valves. 
It is, however, of great importance that some attempt 
should be made to identify all Darwin’s type and figured 
specimens, and in these circumstances it has been thought 
advisable to publish these few notes on those in the Fitch 
Collection. 
Darwin did not definitely decide which of the specimens he 
described and figured should be regarded as the holotypes, 
and since it is highly advisable that the types should be fixed, 
a holotype is here selected in each instance. In the case of 
the description of detached valves, Darwin (op. cit. , p. 2) 
stated that he regarded the scutum as typical in Pollicipes , 
and the carina in Scalpellum. Therefore, in the following 
pages these valves have been regarded as Darwin’s Cotypes, 
and the remainder of the valves as his Paratypes. 
All references to pages and figures in the text in round 
brackets refer to Darwin’s Monograph, and the numbers in 
square brackets are the register numbers of the Norwich 
Museum. 
1. Pollicipes fallax Darwin. 3 
Darwin says under this species (op. cit., p. 75) — “The 
specimens which I have seen, consist of three right-hand 
scuta and one tergum, in the possession of Mr. Fitch, from 
Norwich; of two scuta and two terga collected by M. Angelin, 
in Scania, and forwarded to me by Professor Steenstrup, and 
of a scutum from Hanover, sent to me by Roemer, together 
with specimens of his P. uncinatus .” 
3. Since referred by Dr. H. Woodward to his genus Brachylepas : 
Geol. Mag., Aug. 1906, Vol. III., p. 340. 
