367 
rector of the S. Australian Museum, Adelaide, for sending me a 
pair specimens ofjoshua & Creed’s ""Caudina chilensis'\ which 
proved to belong to Caudina australis (Semper). 
20. Protankyra uncinata (Hutton). 
Synapta uncinata. Hutton. 1872. Catalogue Echinod. New Zealand; 
p. 16. 
— inæqualis. Hutton. 1872. Ibidem, p. 17. 
— uncinata. Théel. 1886. “Challenger” Holoth. II. p. 27. 
— — De ndy. 1897. Observ. Holoth. N. Z. Journ. Linn. 
Soc. Zool. XXVI, p. 25. 
— — Farquhar. 1898. Echinod. Fauna N. Z. Proc. Linn. 
Soc. N. S. W. p. 323. 
Wellington Harbour, ca. 5 fms; mud. 16/IL 1915. 1 specimen. 
Colville Channel, 35 fms; sandy mud. 21/XIL 1914. 1 specimen. 
Tiri-Tiri, Auckland, 15 fms; mud. 5 specimens and some fragments. 
Of this species was hitherto known only the single specimen, 
the type, upon which the description of Hutton as also the ad¬ 
ditional description given by Den dy was based. It is then a matter 
of satisfaction that material has been collected which enables me 
to supply information on some points which Den dy had to leave 
unsettled because of the unsatisfactory State of preservation of the 
type specimen. 
The largest of the specimens in hånd measures 8.5 cm in length, 
by 5—6 mm in diameter; the anterior half is, however, rather 
strongly contracted, so that the specimen may well have been some 
12 cm longwhen fully extended, 
which corresponds fairly well to 
the size of the type specimen, 
as estimated by Den dy. 
All the specimens in hånd 
have 12 tentacles; thus, the 
type specimen evidently is ex- 
ceptional in having 13 ten¬ 
tacles. Generally, but not al- 
ways, the dorsal tentacles are 
distinctly longer than the ven- _ , rr. x , • x 
^ ° Fig. 48. Two tentacles of Protankyra uncinata, 
tral ones. There are two pairs showing sensory cups. ^^/i. 
