27 



By C. B. Davenport : — 



On Urnatella gracilis, Leidy. 6 Plates. 



Notes on the Carotids and the Ductus Botalli of the Alligator. 

 1 Plate. 



By W. E. Ritter : — 



On the Eyes, the Integumentary Sense-papillce, and the Integument of 

 the San Diego Blind-fish (Typhlogobius Californiensis, Steindachner). 

 4 Plates. 



