188 PEKLIMINARY REPORT UPON THB 



TUNICATA. 



Ascidise simplices. 



Ascidia (Linn.). 



iiitestinalis (Linn.) Common in Sound. 



virginea (O. F. Miili.). Not abundant in Sound. 



aspera (O. F. Mull.). Not abundant in Sound. 



vitrea. ? In the neighbourhood (Rogers). 

 Molgula (Forb.). 



occuiata (Kupff). Dredged in Sound. 

 Perophora (Wiegni.). 



listeri (Wiegm.). Abundant. 

 Cynthia (Sav.). 



? On rocks in plenty. 



quadrangularis. ? In the neighbourhood (Rogers). 

 Clavelina (Sav.). 



lepadiformis (0. F. Miill.). In the neighbourhood (Rogers). 



Ascidise compositas. 

 Polycyclus. 



savignyi (Herdm.). 

 Botryllus (Gartn.). Everywhere. 



violaceus (M. Edwards). 



rubrum (M. Edwards). 

 Botrylloides (Edw.). Everywhere. 

 Leptoclinum (Edw.). On shores of Sound, 

 Distoma (Gartn.). Very common. 

 Polyclinum (Sav.). Very common. 



PISCES. 

 Cyclostomata. 



Petromyzon (Artedi). 

 marinus (Linn.), 

 fluviatilis (Linn.). Mud of Sound and rivers. 



Chondropterygii. 



Ganoidei. 

 Accipenser (Artedi). 



sturio (Linn.). Sturgeon. A few caught each year. 



Elasmobranchii. 

 Carcharias (Miill. and H.). 



glaucus (Cuv.). Blue shark. Taken in the Sound. 

 Mustelus (Cuv.). 



vulgaris (Miill. and H.). Smooth, hound. Frequent. 

 Galeus (Cuv.). 



vulgaris (Flem.). Tope. Common. 

 Lamna (Cuv.). 



cornubica (Cuv.). Porbeagle. In drift nets occasionally. 

 Alopias (Rafin.). 



vulpes (Bonap.). Thrasher. Off the coast, occasional. 

 Selache (Cuv.). 



maxima (Cuv.). Basking shark. Off the coast occasionally. 



