80 University of California Publications. | ZOOLOGY 
posterior end of the body, at the angle formed by the junction 
of endostyle and gill. 
Stolon with salpa chain when well developed reaching along 
the entire ventral side of the zooid, parallel with the endostyle. 
(In the specimen from which Fig. 22 was drawn the salpa chain 
was but slightly developed, and hence did not yet present the 
condition described. ) 
Fig. 22’.—S. cylindrica, aggregate generation (after Brooks). 
(b) Aggregate (sexual) generation.—Fig. 22’, copied from 
Brooks. Having seen no specimen of this generation, I give a 
translation of Traustedt’s Latin diagnosis: ‘‘Body ovate; ex- 
tremities terminating in conical, searcely elongate appendages. 
Apertures dorsal. Body muscles five, all interrupted on ventral 
side; three anterior and two posterior confluent in median dorsal 
line; all interrupted ventrally.”’ 
This is one of the rarer forms of salpa of the California 
eoast. I find but four lots of it in all the collections that have 
been made during the last fifteen years, by both the Albatross 
and the University. Two of these were by the Albatross, one 
in January, 1889, the other in April, 1904. The other lots, col- 
lected by the San Diego station, were taken in July, one of 1903, 
the other of 1904. All were from the coast of southern Calli- 
fornia. Curiously enough, all the specimens so far seen, with 
one doubtful exception, were of the solitary generation. 
Salpa confoederata-scutigera Forsk.-Cuvier. 
Salpa confoederata Forsk., 1775, p. 115, Pl. 36, fig. A. 
Salpa scutigera Cuvier, 1817, p. 18, figs. 4 and 5. 
Salpa octofora (?)* Cuvier, 1817, p. 20, fig. 7. 
‘While I follow Traustedt in regarding S. octofora of Cuvier to belong 
to the present species, the figure and positive statement of Cuvier as to the 
elliptical shape of octofora make it not improbable that a rather distinct 
octofora variety does exist. 
