“ TERRA NOVA” EXPEDITION. 
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New Zealand : 
Smilium spinosum, Ann., 1911. 
Lepas pectinata, Spengler, 1793. 
Lepas testudinata, Aur., 1894. 
Conchoderma auritum (L.), 1767. 
Balanus amphitrite, Darwin, 1854. 
Chthamalus stellatus (Poli), 1795. 
Coromda diadema (L.), 1767. 
South Trinidad Island : 
Lithotrya atlantica, n. sp. 
Balanus improvisus, Darwin, 1854. 
On the hull of the “ Terra Nova ” : 
Lepas afjinis, n. sp. 
r The following is a systematic description of the collection. 
SUB-ORDER PEDUNCULATA. 
Family PULLICIPEDI1 LE. 
1. Smilium spinosum, Ann., 1911. 
Scalpelluni (. Smilium) spinosum, Annandale, Tr. N. Zealand Inst., XLIII, p. 164 (1911). 
tplpja'd 
I have opened several individuals of this species without finding a dwarf male. 
One specimen harboured in its mantle numerous nauplius larvae, somewhat clumsy in 
shape and with rather short limbs. Very young barnacles are often to be found 
scattered over the stalk and mantle of what was presumably their parent. Probably 
the larvae have little power of swimming. The case resembles that of S. stearnsi , 
described by Hoek (Siboga Exped. Rep., Cirrip. Ped., p. 73, 1907). 
Station 96 (7 miles E. of North Cape, New Zealand, 70 fathoms). 
1. Sealpellum (. Areascalpellum) discover///', Gruvel, 1907. Fig. 1. 
Seal pell um discoveryi, Gruvel, Nat. Antarct. Exped. 1901-1904 [“ Discovery ”], Nat. Hist., Ill, 
Crust. VI, p. 2, pi. figs. 4-6 (1907). 
A specimen of this species was taken on the pycnogonid Ammothea (jlacicdis in 
the Antarctic. It is intermediate in characters between the two individuals figured by 
Gruvel, and, like them, shows the features of the section Mesoscalpellum ,* though 
there may well be a later stage of the species which has those of a Neoscalpellum. 
! See Pilsbry, Proc. Ac. Philadelphia, LX, p. 110, 1908. Mesoscalpellum and Neoscalpellum are 
treated by Pilsbry as sections of the subgenus Arcoscalpellum, s. lat. 
