392 PHYLLIDIIDA. 
SuspraMity PHYLLIDIIN A. 
Limaciform ; the branchiz leaf-like, between the mantle and 
the foot. No jaws or tongue. 
PuHYLuLipiA, Cuvier. 
Etym.—Diminutive of phyllon, a leaf. 
Distr.—6 sp. Mediterranean, Red Sea, India, Polynesia. P. 
trilineata, Cuv. (xci, 46). 
Animal oblong, covered with a coriaceous tuberculated mantle ; 
dorsal tentacles clavate, retractile into cavities near the front of 
the mantle; mouth with two tentacles; foot broadly oval; gills 
forming a series of laminz extending the entire length of both 
sides; excretory orifice in the middle line, near the posterior end 
of the back, or between the mantle and foot ; reproductive organs 
on the right side; stomach simple, membranous. 
PHYLLIDIELLA, Bergh. Dorsal tuberclesrounded and in quincunx 
order; vent dorsal; pharynx asymmetrical. 3sp. Philippines, 
East Indies. P. pustulosa, Cuv. 
PHYLLIDIOPSIS, Bergh. Vent dorsal, as in Phyllidia, tentacles 
soldered in their whole length to their basis, as in Doridiopsis. 
P. cardinalis, Bergh, Tonga. 
FRYERIA, Grube. 
Disir.—F. pustulosa, Ruppell (xci, 47). South Sea, East 
Africa. 
Excretory orifice on the side of the foot under the mantle, 
which is leathery and watery; six gills entire length of both 
sides. 
HyposrANncui@a, A. Adams. 
Distr.—H. fusca, A. Ad. (xci, 48). Japan. 
Mantle cuticular; gills limited to the hinder part of the body ; 
excretory orifices at the side, under the mantle. 
SuspraMiIty PLEUROPHYLLIDIINA. 
Limaciform; branchiz in a fold of the posterior margin of 
the mantle; tongue armed. 
PLEUROPHYLLIDIA, Meckel. 
Syn.—Diphyllidia, Cuvier. Linguella, Blainv. Armina, Raf. 
Dermatobranchus, Hasselt. 
Distr.—l4 sp. Norway, Britain, Mediterranean, India.  P. 
Cuviert, Meckel (xci, 49). 
Animal oblong, fleshy; mantle ample; gills limited to the 
hinder two-thirds of the body; head with minute tentacles and 
a lobe-like veil; vent at the right _ side, behind the repr OHSS 
orifices ; lingual teéth 30‘h30° 2° * 
