286 
PACIFIC SCIENCE, Vol. VIII, July, 1954 
y connected by a laterodorsal branch. Ciliated 
groove: Anterior to M I, highly convoluted. 
Viscera: Gut a large open loop, forming a 
posteroventral evagination beyond body out- 
line; testis contained in gut loop; embryo on 
right side between M III and IV; no light 
organs. 
Cyclosalpa floridana (Apstein) 1894 
Fig. 5^, b 
Cyclosalpa dolicosoma-virgulaTr 2 cu.stQ^t, 1893: 5. 
[non] Salpa virgida Vogt, 1854: 11. 
Salpa floridana Apstein, 1894^.' 9. 
Cyclosalpa floridana Brooks, 1908: 75 \flde Se- 
well, 1926]; Ihle, 1935: 527-529; Ihle and 
Ihle-Landenberg, 1935: 21; Thompson, 
1948: 111. 
Fig. 5. Cydosalpa floridana. a. Solitary form, dorsal 
surface; b, aggregate form, left side (modified after 
Metcalf, 1918). 
Salpa {Cyclosalpa) floridana Metcalf, 1918: 32; 
Sewell, 1926: 72. 
[non] Cyclosalpa floridana Apstein 1906^; 248; 
1906A 162. 
SOLITARY FORM: One specimen examined 
with length of 8 mm. (Fig. ‘ya). Test: Rather 
thick, glutinous; with no definite elevations 
or depressions; rather far separated from man- 
tle; attached at mouth and cloacal opening. 
Muscles: All six interrupted dorsally, ventrally 
continuous and fused into a single mass; M 
I- II joining dorsally; M I joining mouth 
muscles. Ciliated groove: Simple crescent with 
points turned ventrally. Viscera: Esophagus 
joins intestine ventrally at level of M VI; 
single, ventral caecum projecting from point 
where intestine courses antero-obliquely with 
gill; anus opening at level of M II (Metcalf 
shows this anterior to M I just under gan- 
glion); light organs patchy masses of cells 
between the following muscles on each side: 
II- III-IV-V-VI. 
AGGREGATE FORM: Two Specimens exam- 
ined, with lengths of 2.5 and 4 mm. 
As both POEI specimens are in very poor 
condition, the following description is based 
on Metcalf, as is the figure (Pig. 5^). Test: 
Thin, far separated from body except at 
mouth and cloacal openings; forming a large 
bulge or swelling posteroventrally for testis 
and gut. Muscles: Three body muscles; M I 
joining mouth muscles and, with M C, form- 
ing peduncle muscles; M I-II and III-IV-x 
converging dorsally; M III-IV-x joining 
dorsally, converging ventrally; all muscles 
continuous dorsally and ventrally; x joining 
y by a bridle piece which extends over gut. 
Ciliated groove: Simple crescent. Viscera: In- 
testine forming a close loop, anus opening on 
left behind esophageal opening; testis large, 
projecting posteroventrally from gut; embryo 
located between M IV and x laterally. 
Cyclosalpa bakeri Ritter (1905) 
Fig. Ga-c 
Cyclosalpa bakeri Ritter, 1905: 54; Ihle, 1935: 
