OF NORTHUMBERLAND AND DURHAM. 17 



4. Large, and generally of a pale yellowish brown. 

 This variety is rare with us, but common on some 

 parts of the British coast, in rather deeper water 

 than the other kinds. 

 10. Doris similis, Aid. and Hanc. 



Doris similis, Aid. and Hanc. in Ann. Nat. Hist. ix. 32. 

 From the fishing boats, Cullercoats ; rather rare. 



6. GONIODORIS, Forbes. 



1. G. NODOSA, Mont. 



Boris Barvicensis, Johns, in Ann. Nat. Hist. i. 55, i. 2, f 



11-13. 

 Goniodoris nodosa, Aid. and Han, Mon. Nudib. Moll., fam. 

 1. pi. 18. 

 Among the rocks at Tynemouth, Cullercoats, and Whitley ; 

 common. This is probably the Doris marginata of Hogg's Nat. 

 Hist, of Stockton. 



7. TRIOPA, Johnston. 



1. T. cLAviGER, If an. 



Triopa claviger, Johns, in Ann. Nat. Hist. i. 124. — Aid. 

 and Hanc. Mon. Nudib. Moll, fam. 1. pi. 20. 

 Rare. We have twice met with this species from the fishing boats 

 at Cullercoats, but never within tide-marks. The variety found 

 on this coast is much smaller than those of the south of Eng- 

 land. 



8. POLYCERA, Owwer. 



1. P. QUADRILINEATA, Milll. 



Boris fiava, Mont, in Linn. Trans, vii. 79, t. 7, f. 6. 

 Polycera quadrilineata, Aid. in Ann. Nat. Hist. vi. 338, 

 t. 9, £, 1-6. 

 On small sea weeds in pools near low-water mark, Tynemouth 

 and Cullercoats ; rather rare. Marsden, common. 



2. P. ocELLATA, Aid. and Hanc. 



Polycera ocellata. Aid. and Hanc. in Ann. Nat. Hist. ix. 

 33. Mon. Nudib. Moll, fam. 1, pi 23. 



