The Cambridge natural history . Pleurophyllidiidae.—Body elongate-oval, snout broad,covered by an arched shield with lateral angles prolonged,branchiae consisting of two rows of lamellae placed between thenotaeum and the foot, no tentacles, rhinophores short, hidden,radula multiseriate. Single genus, Pleurophyllidia. Fam. 10. Pleuroleuridae.—Animal resembling Pleurophyllidia,but without the branchial lamellae. Single genus, Pleuroleura. 11. Tritoniidae.—Body long, two rows of unequalarborescent cerata, rhinophores witli ramose appendages, liver notprolonged into the cerata. Genera : Trit
The Cambridge natural history . Pleurophyllidiidae.—Body elongate-oval, snout broad,covered by an arched shield with lateral angles prolonged,branchiae consisting of two rows of lamellae placed between thenotaeum and the foot, no tentacles, rhinophores short, hidden,radula multiseriate. Single genus, Pleurophyllidia. Fam. 10. Pleuroleuridae.—Animal resembling Pleurophyllidia,but without the branchial lamellae. Single genus, Pleuroleura. 11. Tritoniidae.—Body long, two rows of unequalarborescent cerata, rhinophores witli ramose appendages, liver notprolonged into the cerata. Genera : Tritonia, Marionia. Section 2. Holohepatica.—Cerata medio-dorsal, retractileor not, usually paucifoliate, liver never ramified, usually nojaws. Fam. 1. Dorididae.—Branchia consisting of a circle or semi-circle of pinnate leaves united at the base, svunounding the anus,almost always retractile into a cavity, rhinophores foliate, nosuctorial proboscis, radula multiseriate. Genera: Bathydoris,VOL. Ill 2 F 434 NUDIBRANCHIATA. Hexahranchus, Archidoris (Fig. 289), Discodoris, Dimihila, Cadlina, Centrodoris, Platydoris, Cliro-modims, Miamira, with iiiaiiy .sub-genera. Fam. 2. Dooiojysidac.—Branchia andrliinophores as in Dorididae, oral aper-ture pore-shaped, suctorial, no genus, Doriopsis. Fam. ?). Phyllidiidae.—Body oval, depressed, leathery, a ring of branchial lamellae, only interrupted by the head and genital papilla, under the pallial ^ ^^ «dge, oral aperture pore-shaped, suc- FiG. 289.—Z)om (^-c/w^oris) torial, no radula. Genera: PhylUdia, tubercuiata L., Britain: a, Frijcria. Bcrgh unites this and the anus ; br, brauchiae sur- o ^^ ? ^ -n rounding the auus; m, male preceding laniily lu the group Forosto-organ ; /A, rA, rhiuophores. :,,^^^f^^^ which, with Fam. 1, form the group Dorididae cryi^tohranchiatae. Fam. 4. Polyccridae.—Body slug-like, branchiae not retractile,usually surrounding the anus, rhinophores foliate, tentaclessimple, radula variable
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1895
