BritUh Eu'-hijlr.rlfh. Bij Ihv. II. FricivJ. 



BRITISH FPtlDERICIAS. 



Grouped according to Spormathpcee. 



I. SrERMATHECiE WITHOUT DIVERTICULA. 



1. 



3. 



0. 



Setfe not exceeding two per bundle 

 Setae not exceeding four per bundle 

 Set£e from four to ten per bundle- 

 i. 

 ii. 



a. Sal i varies unbranclied . 



/?. Salivaries sparsely branched 



y. Salivaries branched 

 iii. Segments 55-60, length 1-5-20 mm. . 

 iv. Two glands at exterior opening . 



Segments 25-30, leugth 5-6 mm. 

 Segments 40-50, length S-15 mm. 



/'. piddira Friend (26) 

 /'. bidbosa Rosa (8) 



F. variata Bret. (27) 



F. hrefscheri South. (12) 

 F. miiiuta Bret. (16) 

 F. valdensis Issel (18) 

 /. alba Moore (oO) 

 F. striata Levinsen (4) 



II. Spermathkc.e with two Diverticula. 



Setfe not exceeding two per bundle — 

 i. Segments oO-lO, large corpuscles 

 ii. Segments 40-50, salivaries twisted . 



iii. Segments 50-60, diverticula cuneiform 



Sette not exceeding four per bundle^ 

 i. Segments 50-6O, blood colourless. 

 a. Salivaries simple, long . 

 p. Salivaries entire or l)ifurcate . 

 ii. Segments 80-100, blood red . 



Setse from four to ten per bundle — 

 i. Salivaries with two sets of twigs . 

 ii. Salivaries branched 



iii. Salivaries much branched 



F. paroniana Issel (19) 

 /'. ronnata Bret. (14) 

 F. bisetosa Lev. (5) 



/'. helvetka Bret. (23) 

 /'. leydiyi Vejd. (20) 

 F. magna Friend (11) 



F. pprn'eri Vejd. (9) 

 F. agricola Smith (7) 

 F. polychseta Bret. (15) 



III. Spermathec.e with more thax two Diverticula. 



Diverticula sessile — 



i. Segments 30-40, length 5 mm. 



ii. Segments 40-50, length 8 mm. 

 Diverticula auricular .... 



Diverticula three 



Diverticula varying, two to four — ■ 



i. Salivaries long, l)ranched . 



ii. Salivaries with dichotomous 

 Diverticula four to eight — 



i. Salivaries unbranched 



ii. Salivaries much branched 

 Diverticula many — - 



i. Setae 0-6 .' . . . . 



ii. Setae 4-6 



Diverticula replaced by glands 



F. HumMis Friend (24) 

 /". callosa Eisen (22) 

 /'. aurita Issel (13) 

 F. uhnicola Friend (3) 



ends 



F. hnchaelspui Bret. (17) 

 F.yaJba Hoffm. (2) 



F. anglica Friend (29) 

 /'. ratzeli Eisen (6) 



/'. microcara Friend (28) 

 F. hpqpmon Vejd. (10) 

 /'. hhijera Vejd. (1) 



