1915.] 71 



$ . Seventh sternite truncate, with the upper •Mvj;\e produced 

 into a prominent lobe (fig. 34) . Eighth tergite with two long and two 

 small bristles below the stigma and about ten bristles on the ventral area. 

 Receptaculian seminis similar to that of yarei. Stylet somewhat 

 longer than in garei. 



A rare species, apparently confiufid to Grreat Britain and so far 

 only recorded from Scotland f rum the nests of the rock pipit (Anthus 

 obscuriis), the gannet {Sula hassana), and some other birds. 



18. Ceratophyllus oallinae Schranh (1803). 

 (Figs. 35, 36). 



Two rows of bristles in front of the eye, on occiput one bristle 

 near base of antennal groove and a long and a short one above centre 

 of antennal groove. Pronotal comb one-eighth shorter than pronotum. 

 Apical area of the metanotum one-third shorter than the corresponding 

 area of the mesonotum and bearing on each side two short apical 

 spines. Hindfemur with a lateral row four to six bristles on the 

 inner surface. 



^ . Rough area on inside of eighth tergite as broad as the apex 

 of first hindtarsal segment ; eighth tergite on outer surface with six 

 or seven bristles at and near edge and a few on the lateral surface. 

 Eighth sternite (fig. 35) evenly curved, on both sides together with four 

 to six long bristles at apex, these bristles one-fifth shorter than the finger. 

 Process P of clasper short, triangular ; finger four times as long as it 

 is broad, its distal margin slightly incurved before the centre, then 

 feebly convex, the apex being roimded. The finger is of almost even 

 width from the angle of the anterior margin to near the apex ; in the 

 apical half of its distal margin three long bristles, the upper one being 

 thinner and shorter than the others : in between the upper one and 

 the next a short thin spine-like bristle. End-piece of paramere twice 

 as long as the finger is broad. 



$. Seventh sternite (fig. 36) strongly rounded, without sinus; 

 eighth tergite with three to five bristles below stigma, of which one or two 

 are long, on ventral area of eiglitli tergite about a dozen bristles. 

 Pygidium as long as its distance from the stylet, the latter about three 

 times as long as it is broad. Head of receptaculuin seminis long and 

 slender, nearly three times as long as it is broad, and twice the length 

 of the tail, which is two-thirds the width of the head. 



