78 DESCRIPTIONS OF EARTHWORMS. 



with Microchaeta rappi from the Cape, afterwards descri- 

 bed by Beddard ') and Beaham '^). Though Benham seems 

 to be disposed to join Vaillant's suggestion , he has ranged 

 in his Classification of Earthworms '^) the genus Anteus 

 among the Lumbricidae incertae sedis and concludes 

 his description of this worm with the remark: »it would be 

 exceedingly interesting to investigate more fully the ana- 

 tomy of Anteas ., for its locality, Cayenne, is so far re- 

 moved from the home of Microchaeta in South Africa , that 

 it seems scarcely credible that the two are identical." 



Our specimen is broken up in two pieces, measuring 

 together 86 cm.; the number of its segments amounts to 

 about 425. Its colour is bluish green , darker at the dor- 

 sal side, with a brownish tint on the clitellum. The pro- 

 stomium is a quadrangular lobe, not embedded in the buc- 

 cal segment. The two anterior segments are narrow, whilst 

 the eight succeeding ones have about a double longitudinal 

 diameter. 



The clitellum commences with the 14th or 15th seg- 

 ment and extends over nineteen segments. Segment 15 — 

 28 have a glandular appearance and are separated by obvi- 

 ous intersegmental grooves; on segment 22 — 27 the edges 

 of the ventral side are thickened and surround a shallow 

 area, Perrier in his specimens observed an obvious glan- 

 dular modification on the segments 13 — 29, though he 

 found in segment 8 the epidermis already somewhat thick- 

 ened and modified ; in segment 18 — 29 there was a pro- 

 jecting ridge on each side of the ventral surface. 



The setae (fig. 2) are arranged in four couples; on the 

 13th segment those of the ventral couples (1 and 2) be- 

 come separated from each other, and in the middle of the 

 clitellum the distance between them is half as great as 

 the distance between the internal ventral setae of both 



1) Transactions of the Zoological Society, Vol. XII, 1886, pi. XIV and XV. 



2) Quarterly Journal of Microsc. Science, Vol. XXVI, p. 267, pi. XV, XVI 

 and XVI bis. 



3) loc. cit. Vol. XXXI, p. 265. 



JN^otes from the Ley den JMuseum, Vol. XIII. 



