392 phyllidiid^. 



Subfamily PHYLLIDIINM. 



Limaciform ; the branchiae leaf-like, between the mantle and 

 the foot. No jaws or tongue. 



Phyllidia, Cuvier. 



Etym. — Diminutive of |?%ZZo7i, 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 laminae 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 tubercles rounded and in quincunx 

 order; vent dorsal; pharynx asymmetrical. 3 sp. Philippines, 

 East Indies. P. pustulosa, Cuv. 



PHYLLiDiopsis, Bergh. Yent dorsal, as in Phjdlidia, tentacles 

 soldered in their whole length to their basis, as in Doridiopsis. 

 P. cardinalis, B^rgh, Tonga. 



Fryeria, Grube. 



Distr. — 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. 



Hypobranchi^a, a. Adams. 



Distr. — H.fiisca, A. Ad. (xci, 48). Japan, 



Mantle cuticular ; gills limited to the hinder part of the bodj^ ; 

 excretory orifices at the side, under the mantle. 



Subfamily PLEUROPHYLLIDIINjE. 



Limaciform ; branchiae in a fold of the posterior margin of 

 the mantle ; tongue armed. 



Pleurophyllidia, Meckel. 



Syn. — Diphyllidia, Cuvier. Linguella, Blainv. Armina, Raf. 

 Dermatobranchus, Hasselt. 



Distr. — 14 sp. Norway, Britain, Mediterranean, India. P. 

 Cuvieri, 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 reproductive 

 orifices; lingual teeth 30*1'30. 



