Notes from Biological Laboratory, Melh. Univ. Ill 



is posterior and terminal, and the generative opening })laced 

 ventrally some seven segments from the posterior end. 



The male is much smaller and less fi-equently found than 

 the female, from young forms of which it can easily be 

 distinguished by the male genital opening, which is situated 

 anteriorly on the ventral surface. 



The body wall is composed of a very thick cuticle, through 

 which open very numerous multicellular glands. Within 

 the glandular layer, beneath the cuticle, lie the bands of 

 circular and longitudinal muscles. 



The alimentary canal consists of the oesophagus running 

 upwards, lined Avith a definite cuticle, and opening on a 

 papilla into the intestinal tube, which runs straight back 

 dorsally to open at the terminal anus. The intestine is 

 enclosed by the highly developed salivary (?) glands, whicli 

 are formed of large nucleated cells, amongst which ramify 

 numerous ducts. The ducts all unite on either side and 

 run forwards into the head, the one of each side opening, 

 apparently, on a slight papilla above the hooks. 



In the female the ovary is single, and in tlie median line 

 dorsally. Two oviducts unite at a point where are two 

 bladder-like receptacula, and from here the uterus arises, 

 which is much coiled and crowded with eggs, occupies a 

 gi'eat pai't of the ccelom, and opens finall}^ close to the 

 posterior end. 



The specimen resembles closely the form described by 

 Leuckhart as Pentastovium tcmiioides, but is not quite 

 similar to this apparently, and will be determined and 

 described more fully subsequentl3^ 



(3) On the structure and presence of the Ccstode Amphi- 

 ptyches parasitic in (Jallorhynchus Antarcticus. 



