84 DB. W. E. C0LLINGE ON THE 



14. Paridotea fucicola, Barnard. (PI. 8. figs. 30, 31.) 



Paridotea fucicola, Barnard, Ann. Sth. Afr. Mus. vol. x. (1914) p. 427, pi. 36 e. 



Barnard has figured the maxillipede, but not altogether satisfactorily. 



The First Maxilla (PI. 8. fig. 30). — This appendage differs from that in 

 P. rubra in having more denticulate spines on the outer lobe and in the 

 presence of a long setule on the inner ventral surface. It is also densely 

 setose on both the inner and the outer margins, the setse on the inner margin 

 being strong and spine-like. The inner lobe differs only in the position of 

 the setule, which in this species is smaller and situated on the outer anterior 

 marain. 



The Maxillipede (PI. 8. fig. 31). — Excepting that it is much smaller and 

 not so elongated, the maxillipede is very like that of P. rubra. 



Euidotea, gen. nov. 



Body narrow-oblong, not keeled, and nearly smooth. Oephalon anteriorly 

 emarginate, lateral lobes somewhat prominent. Maxillipedes with a palp 

 composed of four joints. Coxal plates narrow, in the second, third, and 

 fourth mesosomatic segments they occupy a little more than half of the 

 lateral margins, in the fifth they occupy almost the whole of the lateral 

 margins, and in the sixth and seventh segments extend from the anterior to 

 the posterior angle. Metasome composed of a single segment and three 

 lateral sutures. 



15. Euidotea pekonii (Milne- Edwards). (PI. 8. figs. 32, 33.) 



Idotea peronii, Milne-Edwards, Hist. Nat. Crust, vol. iii. (1840) p. 133 ; Miers, Journ. 



Linn. Soc., Zool. vol. xvi. (1881) p. 55; Chilton, Trans. New Zealand Inst. vol. xxii. 



(1890) p. 199. 

 Idotea distinct a, Gu6rin- Mene ville, Icon. Eegne Anim. 1829-44, Crust, p. 33. 

 Idotea stricta, Dana, U.S. Expl. Exped. 1853, Crust, ii. p. 704, pi. 46. fig. 7; Miers, 



Journ. Linn. Soc, Zool. vol. xvi. (1881) p. 62. 

 Idotea caudacuta, Haswell, Proc. Linn. Soc. N.S.W.'vol. vi. (1882) p. 1, pi. 4. fig. 4. 

 Paridotea peronii, Stebbing, Ann. Sth. Afr. Mus. vol. vi. (1910) p. 433. 



This species was placed by Stebbing (24, p. 433) in the genus Paridotea, 

 but an examination of the oral appendages at once shows that it cannot 

 remain there, neither can it be placed in the genus Idotea, Fabr. ; I have, 

 therefore, proposed for its reception the new genus Euidotea. 



The First Maxilla (PL 8. fig. 32). — The outer lobe terminates in twelve 

 stout spines, free of any denticulation, and a single fine spine ; the inner lobe 

 has three setose spines, and three setules on its ventral surface. 



1'he Maxillipede (PI. 8. fig. 33). — There are two somewhat large divisions 

 of the coxopodite. The basipodite is rather short, but on its inner side ex- 

 tends for some little distance beyond the first joint of the palp. It is about 



