7ieio or rare British Cruntucea. 649 



Saxony, and, so far as I am aware, it has not been taken 

 elsewhere. 



Tiie points of difference between C. typhlops and C. loeberi 

 have been very carefully described both by Kessler and 

 Thallvvitz, and the latter has gone fully into the relation 

 between these two species and C. zschokkei and C. pygmceus, 

 to which they seem to be related. 



The most striking- characteristic of the species is the form 

 of the anal operculum, which bears three, or occasionally 

 two, very large spines. These spines in C. typhlops are 

 stated by Mrazek to be actually prolongations of the oper- 

 culum itself, whereas in C. iveheri, according to Kessler, 

 they are s[)ines set on the operculum in the usual way. 

 Although my specimens belong unquestionably to C. weberi, 

 ] have not seen in any case any line of division between 

 spines and operculuu), and am therefore of opinion that this 

 difference is more apparent than real. Thalhvitz mentions 

 that in one specimen of C. typhlops the outer spines appeared 

 to be distinctly divided from the operculum. 



I have compared my specimens with the descriptions of 

 Kessler and Thallwitz, and find the agreement between them 

 and the specimens from Saxony to be complete in every 

 detail, with the exception of the opercular spines as mentioned 

 above. 



3. Canthocamptus cuspidatus, Schraeil. 



Taken in iSphagnum-moss at Holt Lowes in Norfolk in 

 June 1921, in company with C. echinatus and Moraria 

 hrevipes. 



C. cuspidatus is a widely distributed species, but is charac- 

 ttristic of mountainous or northern regions. It has been 

 found in various parts of Scotland, but not hitherto in any 

 })!irt of England, and its occurrence in Norfolk is therefore of 

 ri'.ther special interest. 



The locality in which it was found is a fold in the gravelly 

 slope bounding the valley of Holt Lowes, at the head of 

 which are springs the water from which trickles through beds 

 of Sphagnum or supplies small shallow pools in the moss. 

 The conditions are exceptional for this county, and approxi- 

 mate to those natural for the species. It is probably no more 

 than a coincidence that the characteristically northern orchid 

 Goodyera repens grows in the immediate neighbourhood of 

 Holt Lowes. 



Ann. tfc Mag. N. Hist, Ser. 9. Vol. viii. 42 



