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Show 1877.] ANTHOBRANCHIATE NUDIBRANCHIATE MOLLUSCA. 229 furnished with lateral flattened lobes, lamellate below, behind into a caudal veil, above keeled and with transverse ribs. Oral aperture armed with a spinous buccal collar. Odontophore broad, with numerous series of teeth, many of them multidentate ; the rhachis unarmed. (Bergh.) 1. MIAMIRA NOBILIS, Bgh. Journ. des Mus. Godeff. Heft 6, T. 1. f. 5 ; and T. 4. f. 29-33 (1874), & Bd. ii. T. 33. f. 2, & p. 411. Hab. Philippine seas, Albany, Samoa, Amboina. Gen. CASELLA, H. & A. Adams, 1858. Body compressed, elongated. Mantle margin small, forming undulated lobate or erect crests along the sides of the back. Rhinophores laminated, retractile. Foot narrow. Oral aperture armed. Odontophore with numerous minute spines, none median. 1. C. ATROMARGINATA, Bgh. Doris atromarginata, Cuv. Ann. du Mus. iv. p. 473, pl. 74. f. 6 (1804). D. caudate, Lamk. Doriprismatica atromarginata, D'Orb. ; Goniodoris atromarginata, Gray ; C. philippinensis, Bgh. Hab. Pacific Islands, Philippines, New Guinea, Australia, &c. 2. C. GOULDII, H. & A. Adams, Gen. Rec. Moll. ii. p. 57, pl. 63. f. 5 (1858). Pfab. Australia. Gen. KALINGA, Alder & Hancock, 1864. Body oval, subprismatic. Margin of mantle most developed in front, where there is a row of close-set papillated processes extending over the head ; a few similar processes are upon the sides of the back. Rhinophores laminated. Oral tentacles flattened. Branchiae non-retractile, placed separately in a circle at some distance around the anal opening. Odontophore broad, with numerous rather distant rows of tricuspid spines. No jaws or collar. 1. K. ORNATA, Aid. & Hanc. Trans. Zool. Soc. v. p. 135, pl. 32. f. 7-10 (1864). Hab. Coromandel coast. Gen. TRIOPA, Johnston, 1838. Tritonia, Lamarck, 1801. Themisto, Oken (part of), 1815. Euplocamus, Philippi, 1836 (part of). Cladophora, Gray, 1840. Body more or less depressed. Mantle small, covering the head, the margin with linear subclavate or branched appendages. Rhinophores laminated. Oral tentacles cylindrical or ovoid. Branchiae few, non-retractile. Odontophore broad, with numerous plates, the two or three inner ones with large spines, none central. Triopa was instituted by Johnston for the Doris clavigera of Miiller. Messrs. Alder and Hancock proposed to retain as well the |