BY J. J. FLETCHER. 1011 



surface may be convex, in either case the dots or pits still visible 

 on the surfaee. Sometimes the thickened areas are more elongate 

 from side to side, and narrower from before backwards than at 

 other times ; sometimes the tissue only on one side of the inter- 

 segmental groove thickens ; frequently the thickened area is con- 

 stricted in the median line giving it a slight dumb-bell shape ; 

 sometimes the little pits are surrounded by a tumid rim irrespective 

 of the general thickening or even become a pair of papillse ; they 

 are usually intersegmental structures but occasionally they appear 

 to belong wholly to the posterior of the two segments involved, and 

 to be only apparently intersegmental by encroachment. As regards 

 number and situation, there may be two preclitellar ones between 

 segments xi and xii, and xii and xiii ; and four postclitellar, one 

 between xviii and xix, and three between any two segments from 

 xx-xxiv, besides another on the ventral surface of xviii, but some 

 or any of them may be wanting ; in my original specimens only the 

 two preclitellar ones were present ; in the subsequently acquired 

 specimens a very common arrangement is one preclitellar one 

 between xii and xiii, and two postclitellar ones between xx and 

 XXI, and xxi and xxii, together with indications of something like 

 them on xviii. 



Dorsal pores : the first few are not at all conspicuous in the 

 specimens examined ; the first one appears to be between xi and 

 XI r, but there may be a rudimentary one between x and xi. 



Alimentary canal : the gizzard in segment v ; five pairs of 

 calciferous pouches in ix-xiii, overlying the intestine. 



Hah. — The eastern portion of the County of Cumberland north 

 of Port Jackson, N.S.W. 



C. saccarius var. montanus, var. nov. 



Three moderately contracted spirit specimens 50-67 mm. long, 

 3-4 mm. broad ; number of segments about 140-180. 



Two without girdles have the ventral surface of xviii convex 

 and tumid, most marked on each side from a little ventrad to a 

 little dorsad of the inner couples, the thickenings bulging a little 



