104 REV. HILDEEIC FKIEND ON 



The next four species, new to science, are based on specimens collected by 

 myself or Mr. Todd in and around London in August and September of the 

 present year (1911). It may be thought by some that the absence of a penis- 

 sheath would justify the creation of a new genus, but I do not myself regard 

 such action as necessary, especially as that organ may yet be discovered *. 

 I have at present two species which are not known to possess that organ. 

 The first is— 



12. LiMNODEILUS PAPILLOSUS, sp. n. 



First collected at Kew, August 26th, 1911 ; since obtained from the 

 Thames near London, and various localities in Sussex, Nottinghamshire, and 

 Derbyshire. The specimens from Sussex differ from the type, but being out 

 of our present district are unnoticed. The Kew notes are as follows : — 

 "Length from 1-2 inches, nearly 1 mm. in diameter in front, with 180 

 segments. Setse, 5-7 in front, 3-4 in middle and 2 in posterior segments. 

 Brownish red, with fleshy head and yellowish tail, gradually tapering from 

 the thickest part. Head short, rounded. Large hearts in 8-9. Sperma- 

 thecse present, but no penis-sheath. Chloragogen cells begin in 5 or 6, large, 

 dark, circular, when set free." The Kew specimens are the largest I have 

 seen, and differ somewhat from the others in colour, and some minor details. 

 I attribute this to the fact that the Kew specimens have been introduced, and 

 life is higher : the specimens found in Derbyshire being located in stiff loamy 

 soil, and showing a tough, papillose integument of a yellowish hue, often 

 approaching a dirty orange. Again, my notes respecting a typical specimen 

 found in the Midlands are as follows : — " Length 25-30 mm., 90-120 seg- 

 ments. Setse usually five in front bundles, upper tooth much larger than 

 lower. Pharynx in 2-3 ; ventral setae wanting on segment 11, Sperma- 

 thecsQ in 10, a simple sac ; no spermatophores seen ; striate, not cellular or - 

 glandular. Nephridia large ; two pairs in front of girdle in 6/7, 7/8, then in 

 13 and the following. The vascular system in front segments not complex.'" 



Thus it will be seen that this species differs in many ways from the earlier 

 forms. The absence of penis-sheath, the presence all over the body of 

 papillae, the shape of the nephridia, and the vascular system all differentiate 

 it from L. udekemianus, which it resembles chiefly in the shape and size of 

 the setse. 



13. LiMNODRILUS GALERITUS, Sp. n. 



Chloragogen cells begin in fifth segment. Setse 4-5 in segments 2-7, and 

 usually three in middle of body, with upper tooth rather larger than lower, 

 in anterior bundles, and teeth equal behind. Efferent duct very long. 

 Spermathecse without a distinct duct, but with a cap at the external opening 



* Pointner (12) has created tlie genus Zsochceta for these species. — H. F., May 25, 1912. 



