LERN^A LUSCI. 145 



brassies or whiting-pouts, Gadusluscus (Linn.). Found 

 on the gills of this species of fish at Plymouth 

 (Bassett-Smith). Found on the gills of a brassie cap- 

 tured 10 miles off Aberdeen in January 1901 (T. Scott). 

 Frequent on the gill-arches of brassies, Irish Sea (A. 

 Scott). 



A Gadus lusc.us sent from the Fish-Market at Aberdeen 

 had one of these parasites adhering to it; in this example 

 the head of the parasite was buried in the tissues in the 

 abdominal region, behind and a little below the base of the 

 pectoral fin a somewhat unusual position for a Lernsea. 



3. Lernaea minuta T. Scott. 

 (Plate XLIV, fig. 3.) 



1900. Lernsea minuta T. Scott. (112) p. 161, pi. vii, fig. 13. 

 1904. Lernsea minuta, A. Scott. (109) p. 42. 



Female. Head moderately enlarged, not very clearly 

 defined, and merging into the rather short and stout 

 terminal appendage which is somewhat distorted and 

 furnished with small marginal papillae ; two very short 

 lateral appendages also present, with their ends ob- 

 scurely bifurcate. Neck very short, narrow, and some- 

 what abruptly joined to the genital segment ; this 

 segment, which is sigmoid, having the proximal half 

 considerably swollen, but tapering somewhat towards 

 the bluntly-rounded and slightly-recurved extremity. 

 Egg-strings as in Lernaea branchialis but rather stouter. 

 Antennae and other cephalic organs rudimentary or 

 obsolete ; thoracic legs four pairs, small, but quite dis- 

 tinct and situated immediately behind the lateral 

 cephalic horns. Length of the specimen represented 

 by the drawing (PL XLIV, fig. 3) a little over 7 mm. 

 Colour dark red. 



Habitat. Parasitic on the gill-arches of speckled, 

 gobies, Gobius minutus Gmel. On Gobius minutes 

 from the Sol way in November 1899 (T. Scott) ; and 

 on specimens of the same kind of fish captured in the 

 Irish Sea (A. Scott). 



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