ISOPODA, 335 
Fam. Idotheidae. 
©x«ldothea baltica (Pallas), (I. tricuspidata, #.).—C. and gen. dist. (R. I, 79). 
I pelagica, Leach.—Amongst weeds at 1. w. Cumbrae (R. I, 79): rocks nr. 
]. w., E. L. Tarbert (S.). 
©X I. emarginata (/abr.).—Amongst weeds at 1. w., Cumbrae (R. I, 80). 
x(ojL. linearis (Pennant).—In a sandy pool at 1. w., Cumbrae (R. I, 80). 
Zenobiana prismatica, Risso, (Idotea parallela, R.).—Dredged bet. Tan 
Buoy and Hawk’s Neb, Bute, 50 f. (R.-I, 80). 
Stenosoma acuminata (Leach), (Idotea acuminata, 2.).—Nr. l. w., Cumbrae; 
sandy pools, Kilchattan B. (R. I, 81). 
Fam. Astacillidae. 
Xx  Astacilla longicornis (Sowerby), (Arcturus longicornis, #.).—gen. dist. 
(RB. I, 78). 
~  [A. gracilis (Goodsir).—(R. I, 78), is the male of A. longicornis (Sars.)]. 
Arcturella dilatata, G. 0. Sars. (Leacia dilatata, &.).—Off Blackwaterfoot, 
Pesan 201 GR 1 28): 
Fam. Asellidae. 
‘ 6 Asellus aquaticus (Zin.).—C., in fresh-water ponds, canals, &c, (R. I, 77) 
Ses Fam. Janiridae. 
x Janira maculosa, Leach.—L. w., Portloy, Cumbrae; mouth of L. Fyne 
40-60 f.; off Dunoon 13 f. (R. I, 76): E. L. Tarbert ; Campbeltown L., 
&e. (8:). 
* Jaera marina (fabr.).—C. in shall. w., and under stones bet. t. m. 
(R. I, 74). 
[J. nordmanni (fathke).—_(R. I, 75). Sars suggests that the form described 
by Spence Bate under this name may not be the true Rathkian species 
but the male of LZ. marina]. 
Fam. Munnidae. 
Munna boeckii, Kr.— Whiting B. (S.). 
~ Mz. kroyeri, Goodsir.Cumbrae, from nests of Lima hians (R. I, 76). 
[M. Whiteana, Sp. Bate.—(R. I, 75), is the female of UY. kroyeri (Sars). ]. 
Paramunna bilobata, G. O. Sars.—F. of Clyde (A. M.N.): E. L. Tarbert ; 
Kilbrennan Sd., &c. (S.). 
[Leptaspidia brevipes (Sp. Bate)—Off Cumbrae (R. I, 76). Norman 
suggests this is a Pleurogonium|. 
(7) Pleurogonium rubicundum, . 0. Sars.—F. of Clyde(A. M.N.). At mouth 
of estuary 64 f. Dec. 7th, 1899 (F.S. G.). 
_P. inerme, G. O. Sars.—Off Farland Pt., Cumbrae, 23 f. (R. II, 29): Kil- 
brennan Sd. ; Campbeltown L. (S.). 
P. spinosissimum, G. 0. Sars.—Off Farland Pt., Cumbrae (R. IT, 29). 
Fam. Munnopsidae. 
Eurycope phallangium, G. 0. Sars.—L, Fyne, r., 30-40 f. (S.). 
| Fam. Oniscidae. 
© Ligia oceanica (Lin.).—Under stones, &c. ; more or less c. in various places. 
(Note :—This and the following eight species are land Isopods, and may 
be found under stones, old wood, &c.) 
Fam. Trichoniscidae. ; 
Trichoniscus pusillus, Brandt.—Cumbrae (R. I, 86): Rothesay, nr, Aquarium 
(S.). Prob. not une. if carefully sought for. 
T. roseus, Koch.—E. Tarbert (S.) 
