HEKFETOLOGY OF PORTO RICO. 



571 



Description o/ r/^/;^//.— r.S.N.M. No. 2T14S; Arecibo, Porto Rico; 

 April 4, 1!)0(); L. Stejneg-er, collector. Top of head bony, with enor- 

 mous crests inclosino- a deep hollow between the orbits, the height of 

 the supraorl)ital crest being about 7 nnii. above the interorbital space 

 and \\ nun. above the eyelid; the orbital crest originates on the can- 

 thus rostralis extending bacicward in a great arch to ])ehind the eye, 

 from which point a similarly high supratympanic crest projects ])ack- 

 ward, ending in a rounded knob; from the supraocular crest a lower 

 anteorbital ridge and a higher postor])ital crest descend toward the 

 edge of the upper jaw, johiing there the high supralabial crest, which 



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0^©® ^ 



v_y 



Figs. 2-5. 



bufo lemur. 



Natural size; 2, side of head; 3, top of head; 4, underside fore foot; 5, underside hind foot. 



No. 271J8. U.S.N.M. 



extends from below the nostril to the juncture with the postorbital 

 crest; from the inner side of the supraorbital crests a low parietal 

 spur proceeds obliquely toward the occiput, not as a continuous crest, 

 but broken up into several ridges and knobs; snout prominent; lores 

 reep; eyes sunk deep in a large squarish socket; upper lip expanded 

 horizontally as a bony crest several millimeters wide; tympanum ellip- 

 tically erect, its horizontal diameter scarcely one-half the width of the 

 eye; parotoid gland large, descending behind the ear, but not of very 

 distinct outline, as it is densely covered with large conical warts, each 



