of the Fishery Board for Scotland. ADA 
Schizopoda,” this Thysanoessa is readily distinguished from its near ally 
by having a spine over the base of the telson. 
Mysidopsis gibbosa and Mysidopsis angusta have both been obtained in 
tow-net gatherings forwarded from the Clyde, as also have Leptomysis 
gracilis and Praunus inermis. Neomysis vulgaris, a Mysid which 
appears to be rare in the Clyde district, formed part of the contents of 
the stomach of a fifteen-spined stickleback (Gasterostews spinachia) 
captured near the head of Loch Fyne on the 16th of April last (1899). 
The same Mysid has been obtained in the Dhu Loch, near Inveraray. 
Siriella armata (M. Edw.) and Siriella clausit, G. O. Sars, were 
obtained in a gathering of crustacea from Loch Gilp by Mr. F. G. 
Pearcey, the naturalist on board the ‘‘Garland.” The first—Szrvella 
armata—has been occasionally captured in the Clyde during recent years, 
but the second—Siriella clausii—has, so far as I remember, only once 
before been recorded from the Clyde district, viz., in 1886, when one or 
two specimens were taken in Hast Loch Tarbert. The specimen now 
recorded from Loch Gilp is a male, apparently full-grown. It was 
captured in three to five fathoms on 31st October 1899. 
Striella armata, besides having a. strongly produced rostrum, has 
usually some of the cephalic and caudal appendages ornamented with 
chocolate-coloured blotches. The body, especially on the ventral aspect, 
is also occasionally coloured. Siriella clausit appears to be colourless. 
Hrythrops serrata, G. O. Sars, and EHrythrops elegans, G. O. Sars, have 
both been obtained in tow-net gatherings of the ‘‘Garland” forwarded 
from the Clyde. Hrythrops serrata, which appears to be of more frequent 
occurrence than the other, has been observed for the most part in gather- 
ings from the seaward portion of the estuary ; while Hrythrops elegans is 
‘taken occasionally in Loch Fyne, as well as further toseaward. Both are 
sometimes infested with parasites. 
Anchialus agilis, G. O. Sars.—Two specimens of this rare Schizopod 
were obtained in a tow-net gathering collected at Station VI., Firth of 
Clyde (a little to the east and north of Sanda Island). They occurred in 
a bottom tow-net gathering from a depth of 20 to 27 fathoms collected on 
December 15th, 1898. Sars obtained the Anchialus in the Bay of 
Naples at a depth of six to eight fathoms, and he also obtained one near 
Messina at a depth of 20 fathoms. 
Anchialus is one of the many interesting species which Dr, A. M. 
Norman has added to the British fauna. The single female specimen 
recorded by him was obtained at Plymouth in 1890, There does not 
appear to be any previous record of Anchialus ae the Clyde enna: 
Dr. Norman has seen my specimens. 
DECAPODA. 
Xantho hydrophilus (Herbst).—A single specimen of this species—a 
male—was captured with the shrimp-trawl of the “Garland” at the 
mouth of the Clyde, at a depth of 60 fathoms, on June 15th, 1899, and 
forwarded by Mr. Pearcey to the Laboratory, Bay of Nigg, and is now in 
the collection there. One of the characters that seems to distinguish this 
form from Xantho incisus, Leach, is that the claws have the movable 
finger grooved on the upper aspect; the grooves extend nearly the whole 
length of the fingers, All the joints of the feet in Xantho hydrophilus 
are also ciliated on the upper edge, while in Xantho incisus the third only 
is ciliated. 
Corystes cassivelawnus (Pennant).—A small male specimen of this 
species was captured in the same gathering as the last, and is now in the 
