34 



CALYMENE MICROPS.* Green. Cast No. 6. 



Clypeo antice subattenuato;' occulis minimis in 

 lateribus capitisj abdominis articulis a 14 ad 18$ cor- 

 pore depresso. 



The buckler is semielliptical, slightly punctate, and 

 much depressed anteriorly \ the front and cheeks are 

 not very distinctly marked. The eyes are very re- 

 mote from each other, being situated near the poste- 

 rior lateral angles of the head. They are not very 

 prominent, and exhibit no marks of being reticulated. 

 Before the eye on each side, there is a slight trans- 

 verse indentation. It is difficult to distinguish the 

 articulations of the abdomen from those of the tail. 

 They are from fourteen to eighteen in number. Where 

 the lateral lobes remain perfect, two narrow raised 

 lines appear between each of the ribs; these are most 

 evident on the caudal extremities of the animal. The 

 middle lobe is in the form of a long, slender, and 

 acute cone. The whole animal is an inch and a quar- 

 ter long, and is much more depressed than any other 

 Calymene which we have seen. 



I am indebted to Mr. Titian R. Peale for the use of 

 the original from which our model was taken, his li- 

 berality to those who cultivate Natural History is 

 proverbial, and needs no encomium from me. The 

 C. Microps is said to have been found near Ripley, 

 Ohio. It occurs in black limestone. 



The eyes of this Calymene are small in compari- 



* From the Greek for " small eyes." 



