74 Memoirs of the Indian Museum. [Vor. VI, 
and other minor characters such as the complete absence of a gizzard and the much 
smaller number of rings of spines on the penial setae. 
Perionyx millardi, sp. nov. 
Malabar Hill, Bombay; 1914 (W. S. Millard). Three specimens, in bad condition, much softened. 
External Characters.—Length 60-75 mm., diameter z mm.; colour a deep purple 
dorsally, brown ventrally, with a fairly sharp demarcation between the two colours. 
Segments 126. | 
Prostomium epilobous +—2, the lateral grooves converging behind, but the tongue 
included between them not closed behind by a transverse groove. 
Dorsal pores begin from 4/5 or 5/6. 
The setae are in rings, the rings being broken in the mid- 
dorsal and mid-ventral lines, though the gaps are small, — 
largest ventrally in the preclitellar region, where aa=2ab 
or perhaps rather more. The setae were very difficult to 
count, owing to the small size of the worm, and to its 
dark colour forming a background against which the setae 
were almost or quite invisible; in segment vi there are 
about 40, and the same in xxi. 
The clitellum embraces segments xii—xvii=5. 
The male apertures are on xviii, on small papillae, close 
to the middle line; they are small round pores, not slit- 
like. 
TEXT-FIG. 2.— Perionyx mil- acer : | ; 
lardi: diagram of Fe Gee The female aperture is single, in a considerable round 
a few setae shown on segments pale patch on xiv. 
viii and xix to indicate the rela- 5 
tive position of the neighbour- The spermathecal apertures, in grooves 7/8 and 8/0, are 
ing apertures. fairly conspicuous round apertures, very near the middle 
line, —about as near each other as the male pores, and in line with the second seta 
(seta b). as 
Internal anatomy.—It is impossible to give any details of the septa. 
There is a trace of a gizzard, apparently, in segment vi; shining longitudinal 
muscular bundles were seen in the softened walls of the oesophagus. The intestine 
begins behind the prostates. 
The last heart is in ‘xiii. 
The meganephridia are all in the same line. 
Male funnels were identified in x and xi; seminal vesicles are present in xi and 
xii. The prostates are compact masses of moderate size, taking up the whole of seg- 
ment xviii; the duct runs transversely inwards. - 
The female organs have the usual position. 
The spermathecae, in viii and ix, are of considerable size; the ampulla is of an 
irregular ovoid shape, the duct is short and narrow, and there are no diverticula. 
Penial setae are present, in length ‘65 mm., and 18» in diameter. The curve 
towards the free end and the slightly bulbous swelling close to the bluntly pointed tip 
