CHINESE EAKTHWORMS — GATES 425 



possibly the missing pair was overlooked owing to the coverage by 

 connective tissue. 



Specimen C is cut into two portions. The combined lengths of 

 these parts is about 145 mm. The number of segments is 135 or loG. 

 The posterior half of the worm is characterized by an alternate 

 brown and white banding, especially marked on the dorsum, the setal 

 circles on rather narrow, whitish bands, between successive white 

 bands a broader, brownish, intersetal band. These three character- 

 istics enable the identification of the Hamburg specimen numbered 

 V 10472 as the holotype of P. lauta. 



PHERETIMA BUCCULENTA Gates 



1935. Pheretima bucculenta Gates, Smithsonian Misc. Coll., vol. 93, no. 3, p. 7 



(type locality: Szechwan ; type in U. S. National Museum). 



1936. Pheretima fangi-\-P. Upapillata (not P. bipapillata Ude, 1905) +P. buccu- 



lenta Chen, Contr. Biol. Lab. Sci. Soc. China, zool. ser., vol. 11, pp. 275, 

 286, 294 (type locality of favgi: Suifu, Szechwan; of bipapillata: 

 Chungking, Szechwan ; types of both in the Museum of the Biological 

 Laboratory of the Science Society of China). 



Material examined. — From Dr. Graham: 1 clitellate specimen 

 labeled "Szechwan, 3,000-4,000 feet, July 9-11, 1930." 



External characteristics. — ^Length, 135 mm. Diameter, 6 mm. 



The setae begin on ii, on which segment there is a complete circle. 

 There is no definite midventral break in the setal circles ; a middorsal 

 break of variable width may be present. The setal numbers are 

 vi/22, vii/22, viii/25, xvii/16, xviii/20, xix/20. 



The first dorsal pore is on 12/13. 



The clitellum is annular, extending from 13/14 to 16/17; dorsal 

 pores and intersegmental furrows lacking; no setae visible. 



The spermathecal pores are minute, four pairs, on 5/6-8/9. 



The male pores are minute, each pore on a tiny conical tubercle 

 in the dorsalmost portion of a parietal invagination. The parietal 

 invaginations are deep, slitlike, with longitudinal, narrow apertures. 

 The lateral wall is thin, and its ventral margin is liplike. Setae are 

 lacking on the lateral wall of the invagination. 



There is a pair of genital markings on xviii. Each marking is 

 transversely oval, 4-6 intersetal intervals wide, immediately anterior 

 to the setae, the lateralmost portion within the parietal invagina- 

 tion and covered over by the lateral lip. The markings are flat- 

 surfaced, slightly protuberant, sharply demarcated, grayish, and 

 widely separated from each other. In addition to these quite defi- 

 nite markings, there are in the parietal invaginations 1-3 less 

 definite whitish patches of varying shape and size. 



Internal anatomy. — Septa 6/7-7/8 and 10/11-11/12 are thickly 

 muscular; 12/13 muscular; 8/9 present only ventrally; 9/10 lacking. 



