NEW SPECIES OF PEEICH^TA. 201 



mass (x) ; in addition, some flocculent matter lies loose in the 

 sac. The diverticulum is as long as the main sac ; it consists of 

 a narrow duct gradually dilating to form an oval swelling at the 

 tip : this is filled with a white mass of spermatozoa (sp.). 



The sfer mi ducal gland (fig. 1 V) is nearly rectangular, occupies 

 2| segments, viz. XTiii., xvii., and half of XTi., and consists of 

 three main lobes, each of which is lobulated ; the whole may be 

 described as " compact." Its duct {d) is short, stout, and hardly 

 at all curved. It is directed obliquely inwards and backwards, as 

 it passes away from the gland ; it then makes a sudden bend and 

 dips nearly vertically downwards to reach the exterior : there is 

 no muscular bulb. 



The species is quite distinct from any other Fericliasta from 

 this region. 



The following may be regarded as the diagnostic characters : — 



PEBICHiETA NOV^-BEITANNICJS, n. Sp. 



Dark purple, without light bands; clitellum brown. Mea- 

 sures 110 mm. X 5 mm. ; with 120 segments. Male pores small, 

 circular, on oval papillae (" porophores ") ; behind each on xviii. 

 a curved sucker-like depression ; a similar one on xvii. behind the 

 chsetse. Further, small pits, one laterad and one mediad of 

 each pore. Two pairs of spermathecse, in viii. and ix., with 

 pores anterior : a large globular sac, with long duct receiving a 

 moderate diverticulum, with short, slightly curved duct slightly 

 dilated distally. Dorsal pore xii./xiii. Chaetal ring complete ; 

 56 chseta) in front of, 74 behind, the clitellum. Caecum with 

 four digitiform secondary lobes ; spermiducal gland rectangular, 

 in three segments, short stout duct ; no bulb. 



Hah. Blanche Bay, Grazelle Peninsula, New Britain. 



Pekich^ta Sedgwickii, n. sp. 



Of this species there were only two very soft specimens, mea- 

 suring 90 mm. and 110 mm. respectively ; the latter is 5 mm. 

 in diameter, and consists of 86 segments. 



The colour is reddish brown, nearly brick-red, with pale 

 yellowish chaetal bands. The dark band is divided into two by a 

 very narrow but distinct pale line in each intersegmental groove. 

 Behind the clitellum, as well as on the first seven segments of 

 the body, there is a distinct but narrow longitudinal streak of 

 darker tint along the mid-dorsal line : the light chaetal band 

 is in the anterior segments much broken up by extensions of 



