BY T. HARVEY JOHNSTON AND B. BUCKLAND TAYLOR 3l 
posterior teeth (1-6 hexaptera ; 9-11 australis) ; the anterior 
fin is remote from the ganglion in hexaptera and there is a 
greater distance between it and the posterior fin (11°% com- 
pared to 8% in australis) ; there is also a difference in the 
relative length of the two fins, the posterior being the longer 
in hexaptera, but in australis they are equal, or the anterior 
may be slightly the longer ; a crest is present on the jaws 
of hexaptera but not on those of australis; the latter is 
also distinguished by its marked neck. 
From S. lyra it differs in the number of anterior teeth 
(4-8, lyra) ; in the position of the widest part of the pos- 
terior fin (in front oi the septum in lyra); in the lesser 
distance between the fins (6.1°% lyra) and in its well marked 
neck, 
Australian record: Maroubra Bay, near Sydney, 
N.S.W. (Johnston, 1909). 
3. S. enflata Grassi. 
Syn: S. lyja Langerhans, 1880 (not Krohn, 1853). ; 
Spadelia enflata Grassi, 1881 ; 
S. flaccida Conant, 1896 ; 
S. gardinert Doneaster, 1902 ; 
S. brachycephala Moltschanoff, 1907 ; 
S. inflata Ritter-Zahony, 1908, 1909. 
Body broad, transparent and flaccid; neck marked ; 
anterior fin does not reach ventral ganglion. Posterior 
fin does not reach seminal vesicles but tail fin does. Very 
like S. australis in general appearance but the differences 
have been discussed under S. australis. 
Australian localities : 50 miles E. of, Sydney (common, 
June. 1906); Southport, Moreton Bay, Queensland, (Feb. 
1919) ; already reported from Shark Bay, W.A. (Ritter- 
Zahony, 1910). Also recorded from the North Atlantic ; 
Mediterranean Sea; Madeira; Japan ; Indo-Pacific ; Mal- 
dives ; East Indies; Southern California. 
4. S. pulchra Doncaster. 
We have identified this species from a_ solitary 
immature specimen. It is a transparent, flaccid form with 
numerous sensory papillae distributed over the entire 
