CIRRIPEDIA—BORRADAILE. 
131 
5. Lithotn/a atlantica, n. sp. Fig. 4, Fig. 5, a, b. 
Three specimens of a, Lithotrya, taken in calcareous rock on the shore at South 
Trinidad Island, closely resemble L. pacifica, Borr., 1900, but differ from that species in 
having the distal row of scales of the peduncle much smaller and more numerous, and 
also in the mouth-parts (Fig. 5). The distance between the first and second teeth of 
the mandible is much greater than, instead of being nearly the same as, that between 
the second and third ; and the lobes of the maxilla are not so distinct. The palps and 
maxillules, though not identical in the only two specimens I have been able to compare, 
are less unlike. The above-mentioned differences are probably specific. 
Station 36. 
Family LEPADIDAE. 
Sub-Family LEPADINAE. 
6. Leyas pectinata, Spengler, 1793. 
Leyas pectinata, Spengler, Darwin, Lepadidae, p. 85, pi. 1, fig. 3, Ray. Soc. (1851); Pilsbry, 
Bull. U.S. IN at. Mus. 60, p. 81, pi. VIII, figs. 4-8 (1907). 
Half-a-dozen specimens with well-marked ribs and moderate pectination were 
taken on floating weed at Station 89 (off Three Kings Islands, surface). , 9 * '» /• t- 
7. Lepas testudinata, Aur., 1894 (?). 
Lepas testudinata, Aurivillius, Iv. Svenska Vet. Ak. Hand! XXVI, no. 7, p. 7, pi. I, figs. 1—3 ; 
pi. VIII, fig. 4 (1894). 
The “ Terra Nova ” example appears to belong to 
this species by every character except the absence of the 
second filamentary appendage. As, however, the speci¬ 
men is somewhat damaged in the region of that structure, 
it is possible that the appendage was really present. 
Station 143 (34 58' S., 170 12' E., surface). 
8. Lepas affinis, n. sp. Fig. 6. 
Numerous specimens of a Lepas, removed from the 
bottom of the “ Terra Nova” while she was in Lyttelton 
Harbour, in October, 1911, are nearly related to L. hilli, 
but differ from that species in the following respects 
1. The occludent edge of the scutum is either 
straight, or slightly concave, or slightly convex, 
not markedly convex, as in L. hilli. 
2. There is less space than in L. hilli between the carina and scutum, and the 
branches of the forked end of the former extend further beneath the latter. 
This appears to be due to a greater width of the scutum. 
