of the Fishery Board for Scotland. 268 
the Moray Firth Thysanoessa neglecta, Kroyer, is frequently the pre- 
vailing form. *  Nyctiphanes norvegicus, which is also of frequent 
occurrence, and of large size, in Loch Fyne, is generally comparatively rare 
in the Moray Firth and in the Firth of Forth. This Vycttphanes, though 
occasionally met with in considerable numbers in other parts of the Clyde 
district, seldom attains such a large size as it does in Loch Fyne. 
Erythrops serratus and Erythrops elegans have been obtained in 
gatherings collected during the past year both in the Clyde and in Loch 
Fyne, but neither have been observed in the Moray Firth. Erythrops 
serrata formed part of the contents of a hake’s stomach captured at 
Station XIV. (Loch Fyne). The Epicarid parasite Aspidoecia Normannt, 
Giard and Bonnier, was obtained on Erythrops elegans at Station VIL, 
September 1898. 
Strtella norvegica, G. O. Sars, was obtained at Station VII. (Firth of 
Clyde). The Strielie, though represented in the Clyde by at least four 
species, are usually of rare occurrence, so that even the commoner forms 
are worth recording. Striella norvegica is one of the less familiar of the 
British Sirielle. 
Schistomysis ornatus, G. O. Sars, and Hemimysis lamorne (R. Couch) 
has been occasionally met with in the Clyde tow-net gatherings during 
the past year. ‘The first has been obtained in gatherings from Stations 
VII. and VIIL., near the mouth of the estuary, and from Stations XIV. 
and XVII. in Upper Loch Fyne ; the other was obtained in a gathering 
from Station VII. 
Leptomysis gracilis, G. O. Sars, and Leptomysis lingaura, G. O. Sars, 
were also obtained in Clyde tow-net gatherings recently examined. Lep- 
tomysis gracilis occurred in a gathering from Station VIII., and Lepto- 
mysis lingvura in two different gatherings from Station VII, and in 
gatherings from Stations XIV. and XVII. 
Mysidopsis gibbosa, G. O. Sars, Mysidopsis didelphys (Norman), and 
Mysidopsis angusta, G. O. Sars, have all occurred in gatherings recently 
collected in the Clyde and Upper Loch Fyne. Mysidopsis gibbosa was 
obtained in gatherings from three stations, viz., Stations VII., VIII., and 
XVIL.; Mysidopsis didelphys in a gathering also from Station XVIL., and 
Mysidopsts angusia in one from Station VIII. 
Before concluding these notes on the tow-net gatherings collected on 
board the “Garland” and forwarded for examination, it may be of 
interest to refer to a young form of crustacean which is sometimes met 
with in these gatherings. . 
The study of the changes of form to be met with in the life-history of 
the Crustacea is a profoundly interesting one. The variations of form 
observed in the different species are sometimes so perplexing that they 
have occasionally puzzled even experienced students. Numerous larval and 
young forms are now and again captured in the tow-nets, but usually 
they belong to species that are fairly wellknown. It sometimes happens, 
however, that specimens are obtained which are not so easily disposed of, 
and I now draw attention to a curious form which is occasionally noticed 
* Thysanoessa neglecta has recently been observed in the Clyde. It occurred in a tow- 
net gathering from Station X.. collected on the 16th of January last. An exposition of 
the characters which distinguished *his from the closely allied species, 7. longicaudata. 
wiil be found in Rev, Dr. A. M. Norman’s excellent “ Revision of the British Schizopoda,” 
published in the ‘‘ Annals and Magazine of Natural History,” June--September 1892. 
