A HISTORY OF CORNWALL 



183. White Skate, Burton Skate, or Bordered 



Ray. Raia alba, Lac6p. 

 Not uncommon in deep water. 



184. Long-nosed Skate. Raia oxyrhynchus, 



Linn. 



Has been obtained (Couch). 



185. Shagreen Ray. Raiafullonica, Linn. 

 Rare in Cornwall (Couch). 



1 86. Thornback Ray. Raia c/avata, Linn. 

 Common. 



187. Spotted Ray or Homelyn Ray. Raia 



maculata, Montagu. 

 Common. 



1 88. Blonde. Raia blanda. Holt & Cal- 



derwood. 



A species formerly confounded with R. 

 maculata, Montagu. It is larger and more 

 spiny than the latter : J. Couch's description 

 of R. maculata, according to Holt, applies 

 to both species, but was based on a specimen 

 of the blonde. 



189. Painted Ray. Raia microcellata,Mon- 

 tagu. 



Common. T. Cornish states that this 

 form, locally called ' the owl,' is plentiful off 

 Pra Sands in Mount's Bay, and, according to 

 Dunn, it is common at Mevagissey. 



cir- 



190. Cuckoo Ray or Sandy Ray. Raia 



cularis, Couch. 

 Occurs in deep water on sandy ground. 



191. Sting Ray. Trygon pastinaca, Linn. 

 Has been frequently taken. Couch refers 



to one from Whitsand Bay, Cornish recorded 

 in the Zoologist one taken at Porthcurnow in 

 1870, and Day mentions one at Penzance 

 and two at St. Ives in 1881. 



192. Eagle Ray or Whip Ray. Mylwbath 



ayuila, Linn. 



Stated in the Cornish Fauna to have been 

 taken once off Cornwall. Both this and the 

 previous species are viviparous : the ' purse ' 

 attributed to Myliobath by J. Couch belongs 

 to a Rain. 



CYCLOSTOMES 



** 



193. Sea Lamprey. Petromyzan marinus. 

 Linn. 



Common, according to the Cornish Fauna. 

 Two have been recorded from St. Ives, and 

 Mr. Dunn took one from the storrufch of a 

 hake at Mevagissey. 



*I94- Lampern or River Lamprey. P etro - 

 myzonfluviatilis, Linn. 



^ Common in spring in the rivers of eastern 

 Cornwall. 



*I95- Planer's Lamprey or Mud Lamprey. 



Petromyzon branchialis, Linn. 

 Common. 



CEPHALOCHORDA 



196. Lancelet. Branchiostoma lanceolatum, Pall. 

 Occurs on sandy shores, but is not easily 

 obtamed. Couch found his specimen buried 

 in sand under a small flat stone in i8?i 

 The specimen figured by Day was dredged 

 with others at Mevagissey in 1883. 



306 



