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Part III. — Tenth Annual Report 
Common Dabs. 
In all 567 were examined, of which 185 were empty: 356 contained 
food that could be identified. 
Echinoderms were found in 153 stomachs (43 per cent.). The forma 
found were Opliioglypha in 50 ; Ophiura in 30 ; Amphiura in 7 ; 
Amphidotus in 2 ; Ophiocoma in 1 ; unidentified sand-stars in 63. 
Annelids were found in 156 stomachs (43 per cent.). The forms found 
were Terebella in 35 ; Arenicola in 24 ; Echiurus in 8 ; Phyllodoce in 3 ; 
Aphrodite in 2 ; Nereis, Micrura and Sabella, each in 1 ; unidentified 
planarians in 2 ; unidentified annelids in 79. 
Arthropods were found in 81 stomachs (22 per cent.). The forms 
found were Portunus in 43 ; Ampelisca in 14 ; Eupagurus in 7 ; Crangon 
in 2 ; crabs in 4 ; amphipods in 2 ; unidentified Crustacea in 9. 
Molluscs were found in 64 stomachs (18 per cent.). The forms found 
were Solen in 25 ; Scrobieularia in 4 ; Mactra, Peeten, Natica, Mytilus, 
Nucida, each in 1 ; unidentified lamellibranchs in 2 ; unidentified molluscs 
in 7. 
Fish were found in 12 stomachs (3 per cent.). The forms found were 
gobies, common dabs and herrings, each in 1 ; unidentified fish in 9. 
With the exception of Portunus among arthropods and Solen among 
Molluscs, annelids and sand-stars form the chief food of common dabs in 
St Andrews Bay, Ampelisca comes next in order. No other species is 
of much account. 
Long Rough Dabs. 
Of 94 examined, 32 were empty. 
With the exception of Crangon found in 11, fish found in 5, and 
annelids found in 2, the food was composed entirely of Echinoderms, 
viz., ophiurids in 42, and Ophioglypha in 7. No molluscs were found 
in any of the stomachs. 
Gurnards. 
In all 407 were examined, of which 130 were empty: 271 contained 
food that could be identified. 
Echinoderms (Ophiura) were found in only 1. 
Annelids were found in 9 stomachs. They consisted of Sabella in 1 ; 
and of unidentified annelids in the others. 
Arthropods were found in 224 stomachs (82 per cent.). The forms found 
were Crangon in 103; Portutius in 76; Ampelisca in 14; Pandalus in 
4 ; Eupagurus in 2 ; Corystes in 1 ; crabs in 5 ; schizopods in 2 ; uni- 
dentified Crustacea in 17. 
Molluscs were found in 17 stomachs (6 per cent.). The forms found 
were Solen in 7 ; Rossia in 3 ; Loliyo, Scrobieularia and Natica, each in 
1 ; unidentified cephalopods in 3 ; unidentified molluscs in 1. 
Fish were found in 105 stomachs (38 per cent). The forms found 
were whitings in 12 ; herrings and sand-eels, each in 5 ; common dabs in 
3 ; long rough dabs in 2 ; plaice, pipe-fish, cod, sprat and butter-fish, each 
in 1 ; post-larval fishes in 3 ; unidentified fish in 70. 
These figures point to the fact that the food of gurnards in St Andrews 
Bay consists almost exclusively of fish, Crangon and Portunus, with a 
small number of other Crustacea and a small number of molluscs. Echino- 
derms count for almost nothing ; annelids for very little. 
