1007] Bitter. California Coast Ascidians. 47 



ABBREVIATIONS. 



a. 7. Atrial languet. 



b. c. Body portion of column. 

 b. 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 pipes. 



/. c. Tentacle carrier. 



t. ? Tentacles of doubtful significance. 



1st. Test. 



t. v.- Internal transverse vessels of the first order. 



t. v. 1 Internal transverse vessels of the second order. 



