346 OLIGOCHAETA 



(7) Pridericia galba (HOFFMEISTER). 



Enchytraeus Galba, HOFFMEISTER, Arch. f. Nat., 1843, p. 194 (in part.). 

 E. galber, 1 D'UDEKEM, Bull. Ac. Roy. Belg., xxii. pt. ii. 1855, p. 547. 

 E. (Neoenchytraeus, EISEN) galba, MICHAELSEN, Ench. Mob., 1886, p. 48. 

 E. vermicularis, RATZEL, Z. wiss. Zool., 1868, p. 588 (in part.). 

 Neoenchytraeus galba, ROSA, Boll. Mus. Zool. Torino, 1887, No. 29. 

 Pridericia galba, MICHAELSEN, Abh. Nat. Ver. Harnb., 1889, p. 43. 



Definition. Length, 20 mm. ; number of segment*, 50 ; setae, 4-6 per bundle, at posterior end 

 all setae of a bundle equally long. Anteseptal part of nephridia long and broad, with 

 contorted duct. Spermathecae with four stalked diverticula. Hah.- Denmark; Germany; 

 Belgium ; Bohemia ; Italy. 



This species has been much studied in comparison to many others ; see D'UDEKEM 

 (4), LEYDIG (2), BUCHHOLZ, VEJDOVSKY (3). 



The identity of RATZEL'S E. vermicularis in part with HOFFMEISTER'S E. galba is stated by RATZEL 

 in a later paper (1, p. 28, footnote). MICHAELSEN queries the identity of TAUBER'S E. galba with the 

 species so called by HOFFMEISTER and others ; as, however, TAUBER contents himself with a mere 

 mention of the occurrence of the species, it is difficult to see why this should be called in question 

 unless from a general distrust of TAUBER'S identifications. 



The brain is double as long as broad, with a slightly convex hinder margin. The 

 salivary glands are branched posteriorly. The funnel of the sperm-duct is four times 

 as long as broad ; the duct is long and coiled, and there are large spermiducal glands. 

 The diverticula of the spermathecae appear to vary in number from four to six 2 . 

 There appear to be no glands at the external pore. 



VEJDOVSKY was of opinion (3, p- 5) that HOFFMEISTER'S 'E. galba' included all 

 the larger Enchytraeids. It must be admitted that HOFFMEISTER'S definition is totally 

 insufficient to characterize the species as we now know it. 



(8) Pridericia lobifera (VEJDOVSKY). 



Enchytraeus lobifer, VEJDOVSKY, Ench., 1879, p. 57. 



E. (Archienchytraeus) lobifer, VAILLANT, Annele"s, p. 279. 



Fridericia lobifera, MICHAELSEN, Abh. Nat. Ver. Hamb., 1889, p. 44. 



Definition. Length, 20 mm.; number of segment*, 60 ; setae in anterior region of body 4, in 



1 Of course a misprint, with which, it may be remarked, that particular paper teems. 

 * 4-8 according to LEVINSEN. D'UDEKEM also (4, PI. iii. fig. 8) figures eight. 



