118 TEANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



as a free swimmer, and is often fomid parasitic upon the 

 cod and other fishes. 



Galigus curtiis, Leach. (PI. XXVII, fig. 3.) 



Length 5.0 mm. Less common than the preceding 

 species, but found under similar conditions and attached 

 to the cod and plaice. The conspicuous lunules or sucking 

 discs situated on the lower surface of the frontal plates 

 and having the appearance of eyes distinguish the genus 

 Caligus from the rest of the family Caligidse. 



Lepeoptheirus stromii, Baird. (PL XXVII, fig. 6. h.) 



Length 2.50 mm. 



Lepeoptheirus nordmannii,M. Edw. (PI. XXVII, fig. 5. a.) 



Length 4.50 mm. 



Lepeoptlieirus Jiippoglossi, Kroyer. (PI. XXVII, fig 6. a.) 



Length 4.50 mm. 



Lepeoptheirus ohscurus, Baird. (PI. XXVII, fig. 5. b.) 



Length 2.60 nnn. All the specimens I have received 

 . of the above four species of the genus Lepeoptheirus were 

 sent to me from Bull Bay by the late Mr. Frank Archer 

 who had obtained them from the local fishermen. 



Family LERNiEiD^. 

 Lerncea hranchialis, Linn. (PL XXVI, fig. 7.) 

 Two very minute Crustacea (fig. 1) were taken in the 

 tow-net off PufQn Island, which appeared to be larval 

 forms of a Lerncea. Since then two more highly developed 

 specimens (one from the same locality) have been found, 

 apparently belonging to the same species as the larval 

 specimens. They agree in the main with J\<erncea hran- 

 chialis, Linn., described and figured by Glaus in his 

 "BeobachtungenueberLerna30cera,Penicv]iisundLern8ea, 

 1868," corresponding in most particularr vith the male 

 and female described by Glaus, and I Lave provisionally 

 included them under this species. Qxy specimens differ 



