EUGYRA ABENDS A. 73 



lower extremity of the ventral margin, which is much 

 contracted, seems as though situated about the centre 

 of the branchial organ ; it opens at the upper extremity 

 of a wide, smooth, elongated space which reaches to 

 the bottom of the sac. 



The alimentary canal (PL XXIX, figs. 1 and 4) is 

 wide and occupies the greater part of the body; it 

 forms two loops, the lower of which is transverse and 

 extends to the dorsal region ; the upper is shallow and 

 placed over the ventral margin. The liver (PL XXIX, 

 fig. 4) is rather bulky and of a rich tawny-brown 

 colour ; the anal orifice is large and provided with a 

 wide, reflected margin, which forms two lateral lobes ; 

 that on the left side is covered on its internal surface 

 with clavate papilla? ; the opposite lobe is smooth, but 

 has the margin denticulated. 



2. Eugyra globosa Hancock. 

 (PL XXVIII, figs. 5-7.) 



Eugyra globosa HANCOCK in Ann. Xat. Hist. [(4) VI (1870), 

 p. 367]. 



Body globular, unattached, [almost] entirely covered 

 with sand and fragments of shell. Apertures not quite 

 terminal, placed near together, rather wide, resembling 

 a pair of teats, colourless, transparent, placed in a 

 well-defined, bilobed, narrow area, devoid of attached 

 sand. Test soft, thin, with very delicate and for the 

 most part simple fibrils. Mantle free and only 

 attached at the tubes, thin, colourless, or slightly 

 tinged with yellow, transparent, the viscera showing 

 through ; tubes hyaline, with delicate membranous 

 walls. Branchial sac with the vessels of the double 

 spiral coils rather stout. Tentacular filaments branched. 

 Intestine forming a single loop, short and constricted 

 towards the anal extremity, and widening at. its 

 junction with the stomach. Liver bulky, of a very 

 dark olive-green colour. Reproductive organs pale 



