35 



son with those of some other species particularly 

 the C. Bufo, C. Macrophthaima, and C. Anthiops. 



CALYMENE ANCHIOPS.* Green. Cast No. 7. 



Clypeo antice, caudaque postice rotundatis; oculis 

 approximis, magnis, excertisj articulis vigenti$ cor- 

 pore piano. 



The buckler of this species is irregularly hemis- 

 pherical $ the front pyriform and without pustula- 

 tions. The cheeks are almost entirely occupied by 

 the eyes, which are placed very near each other on 

 the upper part of the forehead ; are very large and 

 trilobate, the side lobes being elongated and at- 

 tenuated in front. The articulations of the back are 

 twenty in number, those of the abdomen not being 

 distinguishable from those of the tail. The costal 

 arches of the side lobes are round near their extremi- 

 ties, and are intersected with two or three raised 

 lines. Length nearly four inches. Breadth about 

 two inches. 



It gives me great satisfaction in being able to de- 

 scribe, and to present to naturalists a good cast of 

 this Calymene, which has excited for a long time so 

 much interest and perplexity. The original fossil 

 from which our plaster model was made is now de- 

 posited in the cabinet of the Albany Institute, and is 

 the identical specimen from which a cast was long 

 since made, by Dr. Hosack of New York, a specimen 



* From two Greek words which signify " eyes approximate." 



