15^07] Ritter. — Calif ontia Coast Ascidians. 47 



ABBEEVIATIONS. 



a. I. — Atrial languet. 



b. c. — Body portion of column. 

 b. f. — Branchial folds. 



hr. o. — Branchial orifice. 



b. Mi. V. — Vessels from branchial sac to mantle. 



br. s.- — Branchial sac. 



b. t. — Branchial tentacles. 



d. I. — Dorsal lamina. 



(1. In. — Dorsal languets. 



end. — Endostyle. 



.9.— Gland. 



g. i. f. — Groove of intratentacular field. 



gl. — Ganglion. 



h. f. — Holdfasts. 



}iv. m. — Hypophysis mouth. 



i. I. V. — Internal logitudinal vessels. 



inf. — Infundibulum of branchial sac. 



I. p. — Papilla of branchial membrane. 



m. — Mantle. 



or. — Ovary. 



p. b. — Papillary band of test. 



p. g. — Peripharyngeal groove. 



p. i. f. — Papillae of intratentacular field. 



p. V. — Primary vessels of branchial sac. 



r. — Benal organ. 



s. d. — Sperm duct. 



s. — Stomach. 



<.— Testis. 



t. b. p. — Transverse branchial pipes. 



t. c. — Tentacle carrier. 



t. ? — Tentacles of doubtful significance. 



tst.— Test. 



t. V. — Internal transverse vessels of the first order. 



%. v} — Internal transverse vessels of the second order. 



