280 T. A. STEPHENSON 



Species : 



A. mi ra bills, Johns., 1861. p. 303. (See Duerden, 1897.. 



A. costae. Pane, 1868, p. 30. (See Duerden. 1895, p. 213.) 



A. sans i bare nsis, Cailgr., 1900, p. 28. 



A. rhadina, H. and S., 1893, p. 127, Haddon, 1898, p. 433. 

 And probably others. 



Phyllodisctjs, Kwiet., 1898, p. 407. (See Part II, Text-fig. 18.) 

 Hoplo plioria as used by Haddon (1898, p. 438) for 

 H. ciiicla, not as used by Wilson for H. cora. lligens 

 (1890, p. 379). 



Ahciidae in which the lower part of the body or scapus is smooth ; 

 at its junction with the upper part or capituluni, whic-h may be delicate 

 and extensile, thoie is at least one ring of stalked vesicles ; there may be 

 one ring of about six vesicles only, or one complete ring containing 

 a good many more than that, and a few outside and above the ring ; 

 or there may be several series of them, formed by one vesicle com- 

 municating with each of the older endocoels, four or more with each 

 of the younger endocoels and the exocoels. Form of vesicles variable as 

 to detail, more or less compound. Capitulum may have ectodermal 

 longitudinal muscle, its margin tentaculate. The six pairs of jx^rfect 

 mesenteries may be sterile. Retractors.weak diffuse. Sphincter absent 

 oi' weak diffuse. At their best the vesicles form a wide fiill or ruff round 

 the body (see Part II, Text-figs. 18 and 2 a). 

 Species : 



P. semoni, Kwiet.. 1898. p. 407. 



P. cincta, H. and S., 1893. p. 127 : Haddon. 1898. p. 438. 



P. indie us, n. sp. 



I am uniting under this genus (erected by Kwietniewski for 

 r. somoni) three species. One is the Hoplophoria 

 cincta of Haddon and Shackleton, which is a quite distinct 

 form, but does not agree with the type of the genus Holo- 

 phoria. That type, H. cor a lligens, Wilson, is taken by 

 Duerden (see 1898, p. 456, and 1902) to be a Lebrunia. 

 H. cincta does, however, tit in as a Phyllodiscus, 

 possibly an immature one. The third species is a new one 

 which I liave from the Maldive Islands (out of a collection 

 kindly lent nu' ])y Professor Stanley Gardiner), and which, 

 though perhaps not fully developed, is much further on than 

 P. cincta. and forms a link between that and P. semoni. 



