206 MH. F. E. BliDDARD ON EAllTH^TOllMS [Jan. 14, 



I give segment vi. instead of v. since I did not count the setis 

 with accuracy upon the latter. The setas towards the ventral side 

 are slightly more crowded than laterally, but there is no very 

 marked dilference in size ; neither is there any very great variation 

 iu size from segment to segment. 



The clitellum occupies tlie whole of segments xiv.-xvi. ; it has 

 no sctjB. 



The male jwres are separated by 12 setffi. 



There are no cjenital papillce. 



Between the spermathecal orifices are 30 setce. 



There are no s'yta that can be spoken of as specially thickened. 



The gizzard seemed to me — contrary to what is the rule with 

 the genus — to only occupy a single segment. At any rate, on the 

 right-hand side of the body a septum passes forwai'ds from the 

 hinder margin oi^ the gizzard, to be attached close to (lie orifice of 

 the second spermatheca of that side of the body. The intestine, 

 commencing in the fifteenth segment, is very sharjJy marked off 

 from the preceding oesophagus by its black colour (due of course 

 to contained earth), the a3sophagus being yellowisli vvliite. The 

 intestinal casca are peculiar and serve to differentiate the sjjecies. 

 It is well known that Fericlioila hilgendorfi, P. sieboMi, and 

 F. nmsica possess as a rule, or occasionally, 6 of these ca-ca on 

 each side of the body, arising, Jiowevcr, one above the othei' in the 

 same segment. The present species is not so amply provided as 

 are thoee to which I have just referred ; but it has three cffica on 

 each side, of which the upper is the larger. 



The last lieart is in segment xiii. 



The sperm-sacs are large and occupy the available sjiace of 

 segments xi., xii. ; they also extend into x. The sperm-reservoirs 

 (in X., xi.) are small. 



The S2>ermiducal glands extend thi'ough segments xvii.-xxi. 

 They are much incised and quadrangular in form. The duct 

 commuuicates with the exterior thi'ough a large bursa cojmlatri.v. 



The globular spermathecai are in vii. and viii. ; they open, 

 however, between vii./vih. and viii./ix. ; their duct is short; there 

 is a long coiled diverticulum rather longer than the pouch, ending 

 in a dilated extremity. 



Hah. Barbados. 



PBEIOnJiTA TEINITATIS, n. sp. 



This is a stout Perichceta measuring 150 mm. in length and 

 consisting of 100 segments. 



The setce upon segments vi.-ix. appeared to be larger than 

 tho.se on the segments following. On the seventeenth segment 

 (from the stripped-offi cuticle) I counted 45 setae. Thei-e are 20 

 between the male pores. 



The dorsal iiores appeared to commence on xi./xii. 



The clitellum occupies segments xiv.-xvi. 



The male pores are very conspicuous and surrounded by circular 

 wrinkles of the integument. 



