478 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 85 



(A) On xviii: 4 presetal markings; one just median to each male 

 pore tubercle and two near the mid ventral line, each marking just in 

 front of h. On viii and ix, four pairs, presetal ; one marking imme- 

 diately posterior to each spermathecal-pore tubercle and another 

 marking about 1 intersetal interval median to each spermathecal-pore 

 tubercle. 



(B) On xviii: 4 presetal markings located as on specimens A. On 

 viii and ix; four pairs of presetal markings as on A and an addi- 

 tional marking, postsetal on ix, on the left side and in line with the 

 presetal, median marking. 



(C) On xviii : 4 markings ; two just median to each male pore tuber- 

 cle, one marking presetal and one postsetal. On vii and viii : 4 post- 

 setal markings, one marking immediately anterior to (or anterior 

 and very slightly median to) each spermathecal pore; and two pre- 

 setal markings on viii, the markings slightly median to the sperma- 

 thecal pores on 7/8. 



(D) On xviii: 4 presetal markings located as on A. On viii and 

 ix, four presetal markings: one marking about li^s intersetal inter- 

 vals median to the approximate site of each spermathecal pore. At 

 the center of one of these markings there are visible six distinct 

 minute pores. Originally there was a genital marking immediately 

 behind each spermathecal pore, but the spermathecal pore tubercles 

 and the associated markings had been removed in the previous dis- 

 section. 



(E) The genital markings are tiny transversely oval areas on viii 

 and ix ; each area with a depressed center and a definite protuberant 

 rim, less than 1 intersetal interval in width, slightly nearer to the 

 intersegmental furrows than to the setae; one marking a trifle pos- 

 terior to each spermathecal pore. 



(F) Three presetal genital markings on xviii; one just median to 

 each male pore tubercle and one just to the left of the midventral 

 line, close to the setae and about in ah. On viii and ix there are four 

 pairs of presetal markings as on A. On the grayish centers of each 

 of the more median markings 6-9 pores are recognizable. 



Internal anatomy. — (The internal organs had been removed from 

 the anterior end of A, D, and two clitellate specimens of E or dis- 

 arranged in previous dissections.) Septa 5/6-7/8 are thickly muscu- 

 lar ; 8/9-9/10 lacking or 8/9 represented only by a ventral rudiment ; 

 10/11-12/13 thickly muscular; 13/14 slightly strengthened. 



On the esophagus just behind the gizzard there is either a lobed 

 glandular collar or a rather slight ridgelike rudiment of the collar. 

 The intestine begins in xv (21 specimens), with 15/16 (1 specimen), 

 or in xvi (1 specimen). The intestinal caeca are simple, the ventral 



