64 
PATAGONIAN EXPEDITIONS : PALAEONTOLOGY. 
irregular fragments of shells, Balanids, etc. Inner surface of tubes smooth, 
outer surface very rough. Length of largest fragment, 145 mm, diameter 
of inner tube (without wall), 12-13 mm - 
Remarks : We may safely assume that these large and curious tubes 
have, been built by a worm, but we do not have the slightest indication as 
to its systematic position. I place our species with the genus Terebella, 
because this is the only fossil one known that builds its tubes by gluing 
together fragments of shells, sand, etc. (see Zittel, 1880, p. 564). The 
chief characteristics of these tubes are their large size and the large size of 
the shell-fragments used for their make-up. They will be easily recog- 
nized from the description and figure given here. 
Record of specimens: San Julian, Oven Point; 14 fragments. 
BRYOZOA. 
Chilostomata. 
Fam. CELLARIIDA1 Picks. 
Gen. CELLARIA Lamx. 
9. Cellaria fistulosa (Linnaeus). 
PI. XI, Fig . 6“' 6 . 
1964 Salicornaria marginata Stoliczka, in : Novara Exp. GeoL, v. 1, p. 
150, pi. 20, f. 1 1— 13- 
1880 Cellaria fistulosa Hincks, Hist. Brit. mar. Polyz., p. 106, pi. 13, f. 
1-4 (et synonyma). 
1900 Cell. fist. Ortmann, in: Amer. Journ. Sci., v. 10, p. 378. 
Zoarium dichotomously branched, articulate, internodes of moderate 
length, slender, subcylindrical. Zooecia lozenge-shaped, a little longer 
than broad, contiguous in the same longitudinal row. Orifice arched 
above, lower lip curved inward, subcentral (situated about in the middle 
of the zooecium). Ovarian opening (special pore) subcircular, situated in 
the upper part of the zooecium, in the upper angle of the rhombus. 
Remarks : I follow Hincks in the identification of this species, although 
there is some doubt whether the fossil form described by Stoliczka from 
New Zealand is really identical with this cosmopolitan recent species. 
