CHINESE EARTHWORMS GATES 485 



No trace of the hearts of x was found nor any "connnissural ves- 

 sels" belonging to x. The asymmetrical pair that Chen (1931, p. 129) 

 refers to x probably represents the commissures of ix. 



There is also some confusion in Chen's account (1931) with regard 

 to the copulatory chamber and its glandular appendages and espe- 

 cially the thin-walled sacs into which the glands open. Thus, on page 

 127 there are said to be "Two shallow pits on anterior and posterior 

 sides of the chamber in which the lateral glands open," while on 

 page 130 each lateral lobe is said to be connected by small cords with 

 a "small pit at the lateral side of the chamber." There is no variation 

 with respect to this character in any of the eight specimens dissected, 

 the glands and the chambers to which their ducts pass being anterior 

 and posterior, never lateral and median. 



Beddard's sumatraruL 1892, is, in all probability, either calif ornica 

 or schinardae. The presence of large copulatory chambers rules out 

 californica. Similarly, compound intestinal caeca would rule out 

 schmardde were it not for the fact that all but the dorsalmost sec- 

 ondary caeca may be overlooked unless the gut (in a specimen dis- 

 sected from the dorsal side as is usual) is rolled well over to one side 

 or the other. The dorsalmost secondary caecum, failing this precau- 

 tion, would then appear to be a simple caecum. 



PHERETIMA SZECHUANENSIS Chen 



1931. Plierctimo (Th.) .'szechuaiictisis Chen, Contr. Biol. Lab. Sci. Soc. China, 

 zool. ser., vol. 7, p. 160 (type locality: Mouut Tsing-Chen, Szechwan; 

 type iu (he Museum of the Science Society of China). 



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

 beled "Suifu, 1,200-2,000 feet, October 1-November 1, 1928"; 2 cli- 

 tellate specimens labeled "Suifu"; 3 clitellate specimens labeled 

 "Near Haitaing, 6,000-8,000 feet. August 14, 1928"; 2 clitellate speci- 

 mens labeled "Du Chiao, July 11-13, 1930." 



External charactenstics. — Length, 80-11.5 mm. Diameter, 3I/2 mm. 



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

 (with the exception of one specimen on which the dorsal setae are 

 lacking from ii-vi). The ventral setae of ii-ix are enlarged, dimin- 

 ishing in size passing from a laterally. Setae a-c of these segments 

 are nearly straight, with tips ornamented by transverse, infrequently 

 broken rows of fine spines. A middorsal break of variable width is 

 present in the setal circles, a midventral break slight or lacking. The 

 setal numbers are as follows : 



82345 — 3£ 



