28 



SCOL OPENDRID^, 



CASE small and not full-grown specimens these teeth are absent, or 

 only showing indications. This was presented to the collection 

 as giving a very venomous bite. It does not appear to have been 

 hitherto described. 



Genus Cryptops {Leach). No eyes. 

 Nos. Cryptops hortensis {Leach). — 16. Specimen (i) ; 17. Enlarged figure of 



i6, 17, 



ditto. 



Cryptops hortensis (slightly enlarged). 



This is one of our British species. It is yellowish brown in 

 colour; has no eyes ; 21 pair of feet; and antennas with 17 joints. 



Genus Lithobius {Leach). 

 ^os. Lithobius forficatus (Z/;/;z.).— 18. Specimens (4) ; 19. Enlarged figure ot 

 ditto. 



Head of Lithobius forficatus. 



Lithoiius forficatus (natural size); 



Antennas with numerous joints tapering to the tip; in adults 

 above forty. Fifteen pair of feet and two groups of eyes in the 

 external margin of the head behind the antennae. It is about an 

 inch in length, and broader than any other British species. 



