STEJNEGER: LIZARDS FROM COCOS AND MALPELO ISLANDS. 163 
scarcely an indication of verticels, those on the lower surface nearly twice as 
large as those above ; a pair of enlarged post-anal scales. Color of live speci- 
men (according to the sketch of Mr. Magnus Westergrer, the artist of the 
expedition): top and sides of head and neck uniform sooty black gradually 
merging into the ground color of the upper surface of body, which is “ Van- 
dyke ’’ brown, sprinkled with minute. dots of an ochraceous buff; upper sur- 
face of limbs as well as alternate cross-bands on tail similarly colored ; the 
hands and feet as well as the intervals between the crossbands pale “ Nile” 
blue; end of snout, lips, and entire under side similarly bluish white. In 
alcohol the ground color is more blackish and the dots less yellowish. 
DIMENSIONS. 
otalileng thee yma men yee neun tse eul-ne uf) ANI 
SHCMy UO Chee Mg le tp 6 6 p 4 6 Ha & 
Snout to vent ee a eh ene ees LOTR 
eRaristromeventamery st ahem cc. hh. e) ee ete os Oh s 
Horeylimba sey ees ta eee ee ee ae ELIE ce 
Etindlimibs yeaa ab isnt ress 4 ee FR COOH 
eiibiaarie Mier wr ery Bae ltp eee te) Foie Mg. dae tOG4. ie 
Variation. — A large full-grown female (No. 22103) differs from the male 
described above only in the absence of enlarged post-anal scales. Two some- 
what younger specimens (female, No. 22104, male, No. 22105) differ from 
the fully adult specimens chiefly in the lesser elevation of the cephalic crests 
and the total absence of the cervico-nuchal flap; the color of the back, which 
seems to be identical with that of the adults, extends also over the upper 
surface of neck and head. 
Remarks. — Mr. Charles H. Townsend, who collected these specimens in 
Malpelo, informs me that they were running over the rocks near the water. 
The island was too steep to afford a landing, but the lizards were shot off or 
whisked off the face of the cliffs, thus falling into the water, whence they 
were secured by the collector. 
Anolis townsendi,! sp. nov. 
Diagnosis. — Tail subcylindrical ; dorsal scales but indistinctly larger than 
those on the flanks, those on the vertebral region keeled ; gular and ventral 
scales keeled ; digital expansion strongly developed ; occipital scale larger than 
ear-opening, separated from supraorbital semicircles by two or three scales, the 
semicircles separated by a similar number of scales ; scales on upper surface of 
snout as well as enlarged supraoculars keeled; anterior half of superciliary 
ridge with three very long and narrow, strongly keeled scales placed obliquely ; 
no markedly enlarged series of scales below infralabials ; tibia measuring more 
than two thirds the length of head, slightly shorter than distance between end 
of snout and ear-opening; the adpressed hind limb reaches beyond the eye ; 
tail more than once and a half as long as head and body. 
1 Named in honor of Mr. Charles H. Townsend. 
