4 W. A. HERDMAN. 
DOLIOLIDE ...............Doliolum resistibile, Neumann ; * Lat. 65° S. 
APPENDICULARUD&......Oikopleura gaussica, Lohm.; Lat. 65°5° 8., Long. 90° E. (Lohmann). 
O. valdivie, Lohm. ; ditto. 
O. sp. 
Fritillaria borealis, f. typica, Lohm. 
F. antarctica, Lohm. 
According to this list fifty-two species are recorded from the Antarctic area 
south of 60° S. lat. ; eighty-one species were enumerated by Hartmeyer in “ Fauna 
Arctica” in 1903. 
In the following systematic statement the species are merely placed in families 
under the three great divisions of the Tunicata—groups of intermediate rank being 
considered unnecessary in a report of this nature. 
ASCIDIACHA. 
STYELID&. 
STYELA SPECTABILIS. 
(Plate L.) 
Locality.—Winter Quarters, 17. i. 08, Flagon Point, Dredge, 10-20 fms. One 
specimen measuring :—length 18 cm., dorso-ventral breadth (greatest) 9°5 cm., lateral 
thickness 7 cm., dorso-ventral breadth at posterior end 6°5 cm.; across anterior end 
from branchial to atrial aperture, 8°5 cm. 
External Appearance.—Body elongated, upright, somewhat flagon- eer or 
swollen in the middle, not compressed laterally, attached by the posterior end 
(Plate I., fig. 1, and text-figs. 1 and 2). Both apertures are on the anterior end, the 
branchial turned ventrally and the atrial dorsally; both are large and distinctly 
four-lobed (Plate I., figs. 2 and 3). The surface is even and fairly smooth, being 
merely creased and somewhat corrugated (see text-figs. 1 and 2), but these surface 
foldings probably disappear when the animal is expanded. The colour (in spirit) is 
yellowish grey. 
Test thin, but leathery ; somewhat corrugated on the surface and finely wrinkled 
in place’ ; white in section and for the most part less than 1 mm. in thickness. 
Mantle thin, but very muscular, closely adhering to test. External layer of 
circular and internal layer of longitudinal muscle bundles form a close and fairly 
regular network (see Plate I, fig. 4). 
* Dr. Neumann described (Zool. Anzeiger, 5th Jan., 1909, p. 794) a new Pyrosoma and this new Doliolum 
from the collection of the German South Polar Expedition. It is only the Doliolum, however, that is really an 
Antarctic form, found in latitudes 64° and 65° S., as the Pyrosoma (P. ovatwm, Neum.) was obtained in the 
South Atlantic at 30° 8S. latitude. 
