OF CONCHOLOGY. 157 



Spurious Species. 



Discina JSvausi, Dav., — D. striata, Schum., and is from West 

 Africa, not Bodegas. 



Terebratella puhinata, Gould, is from Patagonia. 

 Terebratella Coreanica, Ad. and Rve., has not been found on 



the West Coast of America. 

 The above list comprises all the Californian species. 



TUNICATA. 



bolteniim:. 



Boltenia Beringi, n. s. 



Test pale ashy gray, tough and hard, smooth, but wrinkled in 

 a reticulated manner very closely and finely; smoother toward 

 the distal extremity. Margins of the apertures bordered with a 

 dark brown line, cleft into four rays. Shape ovate-pyriform ; 

 anal orifice near the distal extremity in the middle of the distal 

 third. Oral orifice about the same size in the middle of the 

 proximal third of the test, which is larger and most inflated 

 between the two orifices. Dorsal side broadly arcuate. Stalk ? 



Lon. 1*36 in., lat. "42 in. Apertures '7 in. apart. 



One specimen deprived of its peduncle was obtained on the 

 shore of St. Paul's Island of the Pribyloff Group, Bering Sea. 



This species differs in the proportional position of the aper- 

 tures, in texture and in color from the Atlantic species with 

 which I have compared it. 



Cynthia pyriformis, of large size and brilliant coloring, was 

 obtained at Plover Bay, E. Siberia, and at Petropavlovsk, Kamt- 

 chatka. 



ASCIDIIDiE. 



Cynthia (?) montereyensis, n. s. 



Test coriaceous, smooth ; with about twelve deep longitudinal 

 grooves, extending from the attachment four-fifths of the way 

 to the distal end ; these are crossed occasionally by circular 

 wrinkles which are multiplied toward the distal end. Inter- 

 spaces between the grooves horny, brownish, polished ; of a deep 

 purple brown when living. Distal end smooth, with a velvety 

 feel, not polished, yellow in life. Test greatly produced, club- 

 shaped, distal end irregularly rounded. 



Branchial chamber lined with a finely latticed series of branch- 

 iae, folded longitudinally at intervals into plicae, of which there 



