. The ascidians collected by the United States fisheries bureau steamer Albatross on the coast of California during the summer of 1904 . es, Toulouse. Michaelsen, W. 1900. Die Holosomen Ascidien des Magalhaeneisch-sudgeorgischen Gebietes. Zoologica, Band XII (12). 1904 Die Stolidobranchiaten Ascidien der deutschen Tiefsee Expedi-tion. Wiss. Ergeb. der deutschen Tiefsee Expedition. Oka, Osajiro. 1906. Notizen iiber japanischen Ascidieu. Annotationes Zoologica Jap-anenses, Vol. VI. Pizon, Antoine 1898. Etude Anatomique et Systematique des Molguliees Appartenantaux Collections du Museum de Paris.
. The ascidians collected by the United States fisheries bureau steamer Albatross on the coast of California during the summer of 1904 . es, Toulouse. Michaelsen, W. 1900. Die Holosomen Ascidien des Magalhaeneisch-sudgeorgischen Gebietes. Zoologica, Band XII (12). 1904 Die Stolidobranchiaten Ascidien der deutschen Tiefsee Expedi-tion. Wiss. Ergeb. der deutschen Tiefsee Expedition. Oka, Osajiro. 1906. Notizen iiber japanischen Ascidieu. Annotationes Zoologica Jap-anenses, Vol. VI. Pizon, Antoine 1898. Etude Anatomique et Systematique des Molguliees Appartenantaux Collections du Museum de Paris. Annales des Sci. Natur-elles, Zoologie, 8 serie, T. VII. 46 University of California Publications in Zoology. [VOL. 4 Ritter, Wm. E. 1901. The Aseidians. Papers from the Harriman Alaska Washington Acad. of Sciences, Vol. III. Sluiter, C. Ph. 1898. Tunicaten von Siid-Afrika. Zoolog. Jahrb. Abth. fur Systematik,etc. 1898. Tuniciers Recueillis en 1896 par la Chazalie dans la mer des An-tilles. Mem. de la Soeiete Zoologique de France. l!i()4. Die Tunicaten der Siboga Expedition. Siboga Expedition, Mono-graplie, 1007] Bitter.—California Coast Ascidians. 47 ABBREVIATIONS. a. 7.—Atrial languet. b. c.—Body portion of f.—Branchial folds. br. o.—Branchial orifice. b. m. v.— Vessels from branchial sac to mantle. br. s.—Branchial sac. b. t.—Branchial tentacles. (1. 1.—Dorsal lamina. d. In.—Dorsal languets. end.—Endostyle. g.—Gland. g. i. f.—Groove of intratentacular field. gl.—Ganglion. It. /.—Holdfasts. //c. m.—Hypophysis mouth. (. L v.—Internal logitudinal vessels. inf.—Infundibnlum of branchial sac. i. i>.—Papilla of branchial membrane. JH.—Mantle. or.— Ovary. p. b.—Papillary band of test. p. g.—Peripharyngeal groove. p. I. f.—Papillae of intratentacular field. p. r.—Primary vessels of branchial sac. r.—Benal organ. s. d.—Sperm duct. s.—Stomach. t.—Testis. t. b. p.—Transverse branchial pipe
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