SIR C. ELIOT—-REPORT ON THE NUDIBRANOHS. 109 
variety of Chr. maculosa*, which has a yellow margin, opaque white lines 
- on the back, purple spots, and 8 branchiz with red tips. Its buccal parts 
are unknown. 
It is also very probable that this specimen is a colour variety of one of the 
species described by Riippell or Ehrenberg from the Red Sea, 
CHROMODORIS PALLIDA (Riippell § Leuckart). 
(Doris pallida, Riippell & Leuckart, Neue Wirbellose Thiere ce; Rothen Meeres, 1828, 
32. 
Chr. ae Pease, Proc. Zool. Soc. 1860, p. 30; and Bergh, ‘Sib 2’-Expeditie, 1905, 
. 150, 
Gaeiee Pease: Amer. Journ. of Conchol. vol. vii. 1. 1871 p. 18; and Bergh, Mal, 
Unters. in Semper’s Reisen, Supp. i. 1880, p. 21.) 
Two small specimens (about 9 mm. long and 6 mm. broad) collected by 
Mr. J. G. Logan of Suez. The notes merely say, “ White markings with 
yellow border to mantle.” 
The preserved specimens are stoutly built, rather high and rectangular in 
shape, with a narrow mantle-margin. The ground-colour is greyish brown, 
but there is a whitish border to the mantle and a considerable amount of 
whitish colour on the dorsal surface. It is distributed over a large patch in 
the centre, which is connected by two stripes with a line running round the 
branchial pocket, and adjoins another patch of roughly triangular shape 
between the rhinophores. The branchize are 7 or 8, with a very distinct 
white stripe on the outside of the rhachis. 
The labial armature is strong and is formed of bent rods with a small 
denticle below the tip, so that from some points of view they leok bifid and 
from others entire. The radula is long and narrow with a formula of about 
150 x 30. F .30, where F is a median “ false tooth.” The outline of its sides 
and apex is clear and well defined, but the base is indistinct. The three 
teeth nearest to the rhachis are rather broad and flat. The one next to the 
median “false tooth’ is as usual in the genus and bears about 4 derticles on 
the inner side. The remaining teeth are hamate, strongly bent, and generally 
bear 8 denticles, sometimes 9 or 10. 
These specimens are almost certainly the same as the animal identified by 
Bergh with Chr. marginata, Pease (1860), but are also probably identical 
with the much older (1828) Doris palhda of Riippell & Leuckart, which 
was found in the Red Sea. Chr. inornata, Pease, is another closely allied 
form. 
* Pease’s references (/. c. pages 15-16) to the figures in his plate seem to be wrong. 
Figs. 1a-ld are clearly the animal described as Chr. maculosa, and 2a-2c the animal 
described as Chr. variegata, but the numbering has been accidentally transposed. 
Q* 
