Vot. II, Pr. 11] WHEELER—GALAPAGOS ISLANDS ANTS 287 
sions. Clypeus subrectangular, distinctly longer than broad, 
scarcely broader in front than behind, with distinct carina. 
Antennal scapes extending a distance equal to their greatest 
width beyond the posterior corners of the head. Epinotum 
in profile convex, without distinct base and declivity. Petiole 
with the upper border rather blunt and feebly emarginate in 
the middle. Brownish yellow, with the pronotum, coxa, 
femora and tibiz pale yellow. Vertex faintly clouded with 
brown; gaster with broad, dark brown bands on the segments, 
but without mid-dorsal streaks. Mandibles red, with black 
teeth. Puncturation of head well developed, as in the var. 
jacobensis. 
Worker minor. Length 3.5 mm. 
Resembling the worker major but the posterior half of the 
head, the whole thorax and petiole pale brown as are also the 
paler portions of the gaster so that the bands of the latter are 
not sharply contrasted with the other portions of the seg- 
ments. 
Described from a single worker major and two minor 
workers (one very immature) taken by the “Albatross” in 
1899 (U. S. Nat. Mus.) on Bindloe Island. 
28. Camponotus (Myrmamblys) macilentus, variety. 
A single major worker and two minor workers taken by 
the “Albatross” in 1899 (U. S. Nat. Mus.) on Tower Island 
probably represent a distinct variety, but all have lost the 
gaster and of the worker major only the thorax and legs 
remain. The specimens are small and all are very pale, like 
the var. joodensis, the head and thorax being immaculate 
brownish yellow, the coxz and legs white. The mandibles, 
except their teeth, are scarcely darker than the remainder of the 
head. The specimens are so imperfect that I refrain from 
introducing a new name. 
29. Camponotus (Myrmorhachis) planus F. Smith. 
Camponotus planus F. Smith, Zool. Coll. made by H. M. 
Sapibevenelaelcoc.;)Zool Soc) london li877,; pi Sao. 
Worker major. Length 5—6 mm. 
