264. REPORT—1868. 
Fbalia tuberosa (Pennant) (#. Pennantii, Leach). Abundant. 
tumefucta (Mont.) (#. Bryerii, Leach). A single specimen, 1864. Curi- 
ously I have not found £. Cranchiit in Shetland, though it seems widely 
distributed on the Scotch coast. 
Atelecyclus septemdentatus (Montagu), = A. heterodon, Leach. Common. 
Order ANOMURA. 
Lithodes maia (Linn.). 
Porcellana platycheles (Pennant). Tide-marks, Out Skerries and Lerwick. 
longicornis (Linn.). Common; a pretty variety with white carapace in 
the neighbourhood of the Out Skerries. 
Pagurus Bernhardus (Linn.). 
Prideauxii, Leach. Common, always with Adamsia. 
— cuanensis, Thompson. Rare, 15 fathoms. Vidlom Voe, 1861; also 5-7 
miles off Balta, 40-50 fathoms, 1867. 
pubescens, Kroyer (P. Thompsoni, Bell). Common. A variety occurs 
in which the hands are entirely free from the hairs which ordinarily 
clothe them. 
—— Hyndmanm, Thompson. 3-12 fathoms; Bressay and Balta Sounds ; 
hard ground. 
—— levis, Thompson. Common on the Haddock (soft) grounds. 
ferrugineus, Norman, Ann. Nat. Hist. Oct. 1861, pl. xiii. figs, 1-8. 
Two specimens taken in Dourie Voe, 1861. 
—— tricarinatus, n. sp. Right chelate foot much larger than left; meta- 
carpus nearly smooth above, but having a few slender porrected spines 
on the distant margin, below (as well as succeeding joints) tuberculate ; 
wrist spinosely tuberculate ; hand ovate, broad, with three much raised 
keels, one median and two lateral, which are denticulate on the crest ; 
surface of hand, in the hollow between the keels, tuberculate; finger 
broad, flattened, having the outer margin covered with much elevated 
tubercles. Left hand and wrist narrow, pinched up (as in P. pubescens) 
into a spine-crowned keel; outer margin of hand with a row of spines. 
First two pair of walking legs having the upper margin spined. AIL 
the limbs slightly hispid, the hairs more especially developed on the left 
cheliped. Length 1? inch. Three examples dredged in deep water 
in 1867. 
There are two Mediterranean species to which this fine Pagurus 
closely approaches, Pagurus angulatus, Risso, and Pagurus meticulosus, 
Roux. The figures of the former would well accord with P. tricari- 
natus, were it not that the keels of the hand are smooth instead of 
strongly tuberculate; and the latter appears to differ from our Shet- 
land form in the more elongated hands. It is, however, not improbable 
that the Pagurus here described may hereafter prove to belong to one 
of these southern species. 
Order MACRURA. 
Galathea strigosa (Linn.). 
squamifera (Montagu). 
—— nexa, Embleton. Rare, one specimen only, near Whalsey Skerries, 
1861. 
—— intermedia, Lilljeborg (G. Andrewsii, Kinahan). Not common. I am 
indebted to Prof. Lilljeborg for typical specimens of this species, which 
