ON A NEW ENTEItOPNEU&T I'ROM M13AK1. 



front of the insertion oi tbe proboscis- 

 neck), a number of transverse epidermal 

 groove are constantly seen ; five epidermal 

 zones and collar grooves are distinct; genital 

 pleurae are free from tbe posterior rim of 

 the collar and their free edges do not come 

 in contact with one another at the anterior 

 portion, while posteriorly they end abruptly, 

 just anterior to tbe hepatic region; in some 

 specimens they may extend themselves 

 along, and just outside, the anterior series of 

 the hepatic saccules ; branchial tract is in the 

 shape of an elongated isosceles triangle with 

 a posteriorly turned apex, on each side of 

 which a deep abrupt depression of the epi- 

 dermis makes its appearance 1 (Fig. I.); hepa- 

 tic saccules arrange themselves more or less 

 regularly one after another and present 

 cushion like epidermal thickenings richly 

 supplied with mucus glands; epidermal strips 

 paired and are limited into tbe abdominal 

 region : Epidermis presents an annular 

 markings in the caudal region and a semi- 

 annular in tbe ventro-Iateral surface of tbe 

 brancbiogenital region while in the hepatic 

 region, it makes fine cross markings, all 

 of which are interrupted by the sagittal 

 median lines of the body ; in the branchial 

 tract, epidermis is divided up to a series of 



Fig. l. 



Dormii view of a preserved specimen. 



(*)• 



1.) We have similar cases in Glostobalamu hedleyi (Hill, 1398, p. 3*0.) and especially in 

 Glossobalanns ruficollis, in tbe later of which " the depression is localised in the posterior end 

 of the branchial region " and Willey suggests its strong resemhlancu to the dermal pits of 

 Spengelia porosa (Willey, 1899, p. 263 and 275.) 



