•s.A. VOT-. :x^\^ 
May, 1933 . By Brnuird ('. Colton and t. k. ('todirry. 
99 
AEOLIDIDAE (= EoUcHdae.) 
Animal elon.uatcd. sliig-likc; rhlnophorcs non-retractile; dor- 
sal papillae spindle-shaped or club-sha|'ed, each ending in an o]''cn 
sac of endodermic origin which communicates with the hepatic 
caecum and contains nematocysts; anus lateral; mouth armed 
^Adth horny jaws. Distribution — Ail seas. 
Eolidina. Quatrefages 1843 (= AeoJitliella Bergh 1874). 
Animal ovate or linear; head with very long cylindrical buccal 
tentacles; rhinophorea simple; dorsal papillae compressed; an- 
terior angles of foot prominent; orifices of generative system and 
vent on right side; sali\’ary glands very large. Type — A. som- 
Leuckart. 
E. faustina. Bergh 1%(). Papillae covering nearly the whole 
of the dorsal surface; anteriorly their arrangement produces two 
rjorseshbe shaped figures; behind these four there are about ten 
somewhat oblique rows, each row with about six to eight papillae: 
they are cylindro-conic and close together; anal papillae behind 
the sixth row; colour dirty light-yellowish. Length 13, breadth 
3.5 mm. I'asmania. Xot recorded from Sfjuth Australia so far, 
but the description is given here so that this, or allied species of 
the famil}' may be recognised in the event of their being found. 
PLEUROPHYLLIDIADAE. 
Animal r)blonu, depressed, flesl]}-; mantle, somewhat cori- 
aceous. covering upper part of body and notched in front; head 
short, broad, forming a triangular lobe in front of the mantle, 
mostly with plaited lips and strong horny jaws; tentacles two 
very small, conical or club shaded, close together, retractile, each 
in a socket witliin the pallia! notch: foot elongated, somewhat 
narrower than the mantle, slightly indented in front and abruptly 
pointed behind; gills placed under the edges of the mantle on 
the hinder two-thirds of the body, and arrang(;d in an (.>blique row 
of very numcroirs leaflets or laminae on each side; vent lateral, 
posterior; generative organs on same side, but near the front. 
Distribution — ^.-Ml seas. 
PleurophylHdia Meckel (~ Diphyllidia Cuvier: JAngu- 
^Ua Blainville: — Armip.a Rafinesque). The genus name refers 
to the leaf-like gills on the sides. Animal oblong, fleshy; body 
depressed, mantle large, expanded, smooth, simple above: gills 
limited to the hinder two-thirds of the body; head partially con- 
cealed by the mantle with minute tentacles and a lobe-like veil 
formed by the expanded tentacles. dAq’ie — P. lineaUi Otto. 
P. cygnea. Bergh 1876. PL 1, fig. 19, PI. 4, tigs. 1-10, and 
PI. 2, figs. 8, 9. ‘‘d'he Swan River PleurophylHdia/’ Animal elon- 
gate, oblong; sides nearly parallel, terminating in a blunt point 
