502 Part III. — Twentieth Annual Report 



Crustacea which could not be determined, and one contaiaed small 

 Molluscs and Amphipods (Podocerus falcatus chiefly), the MoUusca 

 comprised young Mijtilis edulis and Gastropods. The specimens of 

 Zoarces examined ranged from about 23 to 28 centimetres in length. 



Sharp-tailed Lumpenus. Lumpenus lampretiformis (Walb.). 



Twenty-five specimens of Lumpenus have been examined ; they com- 

 prised twenty-two from the Firth of Forth, collected in May and July 

 of the present year (1901), and three from the Clyde, collected in 1897 

 but not examined till January 17th, 1901. The stomachs of all the 

 specimens contained food, and in some cases in considerable quantity, 

 but the organisms of which it was composed were generally small. A 

 considerable proportion of the food consisted of Oopepods and Ostracods, 

 but several other groups of Crustaceans were also represented. MoUusca, 

 Annelida, and brittle Starfishes also contributed to the Lumpenus' "bill of 

 fare." The three Clyde specimens measured 15i, 16f, and 22| 

 centimetres respectively; the stomach of one of these contaiued a few 

 specimens of Ostracods [KritJie hartonensk and Cytlieridea sp.) and 

 Annelids. In the stomach of another Cytlieridea papillosa and remains 

 of Annelids were observed, while the stomach of the third contained the 

 following among other organisms— young Cardium sp., Nucula sp. and 

 Cyliclina sp., Eudorella fnmcatula, and Lepto<jnailiia hreviremis : Cyfhere 

 porcellanea, Krithe hartonensis, Cytlieridea papillosa &nd other OstYacod&; 

 Longipedia coronafa, Ectinosoma sp , and other Copepods not determined. 



The food observed in the stomachs of ten specimens captured at 

 Station V., Firth of Forth, on May 13th, 1901, was composed of a great 

 variety of organisms, and all the stomachs were well filled. MoUusca 

 were found in two of the stomachs, and comprised small specimens of 

 Nucxda tenuis, Corlnda gibba, Tellina sp., and Montacuta substriata. 

 Crustacea formed the principal part of the food in the stomachs of 

 almost all the fishes in this sample, Sympoda (Cumacea) occurred in 

 five stomachs, but the only forms observed were Leucon nasica and 

 Diastylis sp.; Leptognathia brevirernis — one of the Isopoda chelifera — 

 was found in one. Amphipods, comprising Leucotlioe lilljeborgii, 

 Ampelisca sp., Protomedeiafasciata, Didichia falcata and other species 

 were observed in four, Ostracoda were present in eight stomachs, and 

 included the following amongst other species — Cythere concinna and 

 dunelmensis, Krithe bartonensis, BytJiocythere simplex, and Philomedes 

 interpimda. The Copepoda were represented by several species, but the 

 following two were the most common, viz., Longipedia coronata, which 

 was moderately abundant in several of the stomachs, and Rohertsonia 

 tenuis, which was also "frequent" or "common" in several, and usually 

 in company with the Longipedia. Larval Balani (cypris stage) were 

 present in a few, while marine Acarides and Foraminifera, the remains of 

 Annelids, and the fragments of brittle Starfishes were also occasionally 

 observed. The specimens of Lumpenus in this sample ranged from 28 to 

 a little over 34 centimetres in length. 



The second sample of Lumpenus from the Firth of Forth comprised 

 twelve specimens, which were collected at Station HI. on July 13th, 1901. 

 The stomachs of all these specimens contained food which for the most 

 part could be easily identified, and the organisms which appeared to be 

 most in favour with the fish were Longipedia, these Copepods being 

 present in eleven out of the twelve stomachs examined. There appeared 

 to be less variety in the food of this sample than in that of the last, and a few 

 organisms were observed which did not appear to be present in the last 

 sample. The Sympoda were represented by Leucon nasica, Eudorella 



