64 Zoology 



worm [Anguis fragilis) has been recorded by Prof. Stanley Gardiner from 

 Wicken Fen. The grass snake [Tropicioiwtns natrix) occurs in suitable 

 places, but it is very doubtful whether the viper {Vipera hems) can still be 

 found in the County. 



AMPHIBIA 



Apart from the common frog and common toad, which are prevalent 

 throughout the County, the natterjack [Bufo calamita) occurs chiefly at 

 Gamlingay, where its spawn is to be found in the shallow water of some 

 of the clay pits. The edible frog [Raiia esciileiita), though once common, 

 is now seldom found. The crested or warty newt {Molge cristata) is common 

 in ponds and ditches, while the common newt (M. vulgaris) is very general 

 in its occurrence. The palmated or webbed newt (M. pahnata) seems to be 

 confined to Quy Fen; at least, there are no records from other parts of the 

 County. 



PISCES' 



The sea lamprey [Petromyzon marinus) occurs in the River Nene and is 

 sometimes caught above Earith. The river lamprey or lampern [Lampetra 

 fiuviatilis) is common in the Hundred Foot River, in the Ouse above 

 Earith, in the Little Ouse, and in the Nene; and a number of lamperns 

 was found in the Cain near Grantchester about the year 1927. The 

 salmon [Salmo salar) is now only an occasional visitor. Trout (5. trtitta) 

 occur in the more rapid streams but are not very common. Pike, roach, 

 dace, eels, minnow, rudd, tench, gudgeon, bleak, loach, perch, and miller's 

 thumb, are all common. The grayling (Thymalhis thymallus) is not in- 

 digenous but has been introduced into the River Lark. The chub [Squalius 

 cephalus) is rather local and occurs near Cambridge in Byron's Pool. The 

 silver bream {Blicca bjoerkna) and the bream {Abratnis brama) occur 

 commonly in the Fenland, while the Crucian carp (Camssitis carassius) is 

 apparently rare, and the common carp [Caprinus carpio), too, is not 

 abundant. The spined loach [Cobitis taenia) occurs locally near Cambridge, 

 and the burbot {Lota lota) is common in parts of the Fenland waters. The 

 three-spined stickleback {Gasterosteus aculeatus) and the ten-spined stickle- 

 back {Pungitiiis pungitius) are both common: the latter occurs in fen ditches 

 and lodes up to Lingay Fen above Cambridge. The flounder {Platichthys 

 flesus) is frequently taken in the fenland rivers. Various marine fishes have 

 been caught near Wisbech but, excepting the grey mullet, greater weever, 

 and the dory, they have only been represented by single records 



' From data supplied by H. E. Whiting, B.A. 



