Pacific Salpidae — Y OUNT 
283 
duncle, present in the aggregate form. Body 
muscles penetrating into peduncle. Groups of 
blastozooids forming whorls on stolon. 
Four species: Cyclosalpa pinnata (type), C. 
affiniSy C. floridana, and C. bakeri. 
Cyclosalpa pinnata (Forskal) 1775 
Fig. 'ia-d 
Salpa pinnata Forskal, 1775: 113. 
Biphora pinnata Bruguiere, 1789: 180. 
Salpa pelasgica [.?] Bose, 1802: 181. 
Salpa cristata Cuvier, 1804: 366. 
Salpa thalia [.^] Lamarck, 1816: 119. 
Salpa caudata [.^] Lamarck, 1816: 119. 
Salpa {Cyclosalpa) pinnataB\dmC\l\^, 1827: 108; 
Metcalf, 1918: 9; Sewell, 1926: 68; Stiasny, 
1926: 414. 
Salpa cyanea [.^] Chiaje, 1828: 63. 
Salpa prohoscidalis Lesson, 1830: 95. 
Salpa mucosa [?] Costa, 1839: 225. 
Orthocoela pinnata Macdonald, 1864: 181. 
Cyclosalpa pinnata Herdman, 1888: 87; Ihle, 
1935: 527-529; Tokioka, 1937: 219; 
Thompson, 1948: 103. 
Cyclosalpa polae Sigl, 1912^.' 66; \9\2b {fide 
Ihle and Ihle-Landenberg, 1937); Fedele, 
1926, 1933 {fide Ihle and Ihle-Landenberg, 
1937); Ihle and Ihle-Landenberg, 1937: 1. 
Cyclosalpa bakeri Bomiosd, 1913: 243. 
[non] Cyclosalpa bakeri Ritter, 1905 : 54. 
Salpa {Cyclosalpa) pinnata polae Metcalf, I9I8: 
26; Sewell, 1926: 68; Komai, 1932: 69. 
Cyclosalpa pinnata polae Ihle, 1935: ^21-^29. 
Cyclosalpa pinnata var. polae Tokioka, 1937: 
220. 
SOLITARY form: Four specimens examined 
with length range of 4-12 mm. (Fig. ')c,d). 
Best: Rather thin, glutinous, without definite 
elevations or depressions. Median dorsal ridge 
described by Stiasny (1926) absent as are 
anterior "ventral languets" shown by Met- 
calf (I9I8). Muscles: Six body muscles, each 
interrupted dorsally and ventrally; oral mus- 
cles touching M 1. Ciliated groove: An arched 
U in dorsal view, but may be sinuous or con- 
voluted according to various investigators. 
Fig. 3. Cyclosalpa pinnata. a. Aggregate form, left 
dorsal side; b, aggregate form, right dorsal side; c, sol- 
itary form, left side; d, solitary form, ventral view of 
cloacal region. 
Viscera: Esophagus opening between M VI 
and X on right side, connecting to intestine 
which accompanies gill antero-obliquely; at 
junction of intestine and esophagus, two 
caeca projecting posteriorly, the left one al- 
most twice the length of the right one; light 
organs four on each side, between muscle 
bands II-x (five according to most investi- 
gators, but Sewell, 1926, found only four — 
none between I-II— and this is also true of 
POFI specimens). 
AGGREGATE FORM: Four specimens ex- 
amined with length range of 11-31 mm. 
(Fig. ')ap). Best: Thin and flabby, far sep- 
arated from mantle except at region of mouth 
and cloacal openings; glutinous; no definite 
