3 88 Records of the Indian Museum. [Vol,. XIII, 



small stalked glands, sometimes rather mushroom-like ; a similar 

 group exists in the spermathecal region. 



Subfam. OCTOCHAETINAE. 



Gen. Hoplochaetella. 



Hopiochaetella suctoria, sp. nov. 



(PI. xvi, fig. 12; pi. xvii, figs. 13, 14). 



W. 67/1. Sanvordem, Portuguese India; under stones near river subject 

 to tidal influences. ii-i\-!9i6. S.Kemp. Five specimens. 



External characters. — Length 140 mm. ; thickness 6 mm. 

 Colour a light brown dorsally, with rather darker median stripe ; 

 pale ventrally ; setal rings on whitish lines. Segments 145. 



Prostomium epilobous f , tongue not closed behind. 



Dorsal pores from furrow 4/5. 



The setae are disposed in rings ; the middorsal interval is 

 small, — about 2yz, but it varies somewhat, and may be less than 

 2yz in the anterior part of the body ; the midventral interval is 

 similar to the middorsal. The setae of some of the anterior seg- 

 ments are enlarged, more especially those of segments iii-viii ; in 

 general, the ventral setae are set more closely than those on the 

 lateral and dorsal aspects ; this is especially noticeable in the pos- 

 terior part of the body. The following numbers were counted : — 

 66/v, 66/ix, 63/xii, 60/xxi, and 58 behind the middle of the body. 



The clitellum was not distinguishable. 



The external genital markings vary somewhat ; it will perhaps 

 be most convenient to describe the first specimen in some detail, 

 and then briefly to allude to the differences in the others. 



In the first specimen examined (fig. 12) the male field embraced 

 segments xvii-xix, the most striking feature being the presence 

 of three circular or obliquely oval clean-cut depressions with flat 

 bottoms, which from their sucker-like appearance suggested the 

 specific name; of these a pair v^'ere situated on segment xvii, their 

 length anteroposteriorly being equal to the length of the segment, 

 and the distance between the inner margins of the depressions 

 being about equal to twice their longest diameter , the outer and 

 anterior wall of each depression is steeper than the rest of the 

 circumference. A similar depression is present on segment xix, 

 but this is single, and to the right of the middle line, which it 

 almost reaches by its inner margin ; in this one it is the outer and 

 posterior part of the circumference which is the best defined The 

 whole area which includes these three depressions, as well as the 

 prostatic apertures to be mentioned immediately, is sunk below 

 the general surface ; the sunken region is triangular in shape, in 

 accordance with the disposition of the sucker-like depressions, 

 but the triangle is not symmetrical about the middle line. 



The prostatic apertures are represented by two pairs of small 

 transversel}^ elongated, almost linear, pits in furrows 17/18 and 

 18/19 respectively ; the anterior pair is situated rather internal to 



