296 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser. 
the pronotum and basal gastric segment are also distinctly 
reddish. 
Worker minor. Length 3.5—4 mm. 
Very similar to the worker major even in the structure of 
the epinotum. The red parts of the body, however, are dis- 
tinctly more yellowish. 
Female (dealated). Length 9 mm. 
Colored like the worker major but with the anterior and 
lateral portions of the mesonotum, the mesopleurz above and 
the sutures of the thorax and gaster ferruginous red. The 
pubescence on the gaster as in the female of the typical planus. 
The border of the petiole is blunt, transverse and entire. 
Described from two major and six minor workers and a 
single female taken by Dr. Williams, Oct. 19-24, 1905, on Bar- 
rington Island. I do not regard the more reddish color of the 
head and thorax of all these specimens as due to immaturity. 
Cotypes, 5 specimens, No. 458, Museum California Acad- 
emy of Sciences, and 4 specimens in author’s collection. 
35. Camponotus (Myrmorhachis) planus fernandinensis, 
new variety. 
Worker major. Length 6.5—/ mm. 
With the stature and size of the head of the typical planus 
and very similar pilosity and color. The pubescence on the 
gaster, however, is shorter and dull grayish, without the silky 
lustre of many of the other varieties. The pubescence on the 
legs and scapes is very short and inconspicuous. ‘The sculp- 
ture is most like that of the var. zsabelensis, although the sides 
of the head are somewhat more shining and more feebly 
punctate as in the typical planus. The base of the epinotum 
is concave in profile and the ridge between the base and de- 
clivity is rather sharp and feebly emarginate in the middle. 
Described from 10 specimens taken by the “Albatross” in 
1899 (U. S. Nat. Mus.) on Narborough Island. 
Cotypes, 1 specimen, No. 459, Museum California Academy 
of Sciences, and 4 specimens in author’s collection. 
This variety is most distinctly characterized by the short, 
dull grayish pubescence of the gaster. 
