346 



Last 

 above- 



well-defined articulations, the penultimate one produced at the end anteriorly 

 a dentiform projection. Inner ramus of 1st pair of legs with the 2 apical spines 

 sligtly transformed, the outer one claw-like and curved outwards, the inner seti- 

 form. The 3 succeeding pairs of exactly the same structure as in female. Last 

 pair of legs each produced at the end into 2 small digitiform lappets. 



Colour fiery red. 



Length of adult female 0.55 mm. 



Remarks. There cannot, in my opinion, be any doubt that the 

 described form is that originally recorded by Philippi as Metis ignea. The 

 llyopsyllus coriaceus of Brady is the same species, and this is in all probability 

 also the case with the form recently recorded from the east coast of North 

 America. 



Occurrence. I have met with this peculiar Copepod occasionally in severa 

 places on the west coast of Norway, It generally occurs in moderate depths on 

 a muddy bottom covered with decaying alga?, and may at once be recognised by 

 its vivid fiery red colour. 



Distribution. Mediterranean (Philippi), British Isles (Brady), Atlantic 

 coast of North America. 



ral 



Fam. 19. Balaenophilidae. 



Characters. Body slender, sub- linear in form, with no sharp demarcation 

 between the anterior and posterior divisions. Anterior antennae of moderate size, 

 and the number of joints not reduced. Posterior antennae with the outer ramus 

 rudimentary. Oral parts small and to some extent imperfectly developed, except 

 the posterior maxillipeds, which are rather powerful and strongly clawed. 1st 

 pair of legs much larger than the others, and of rather different structure, being 

 pronouncedly prehensile, with both rami strongly clawed at the end. The 3 

 succeeding pairs with the inner ramus imperfectly developed. Last pair of legs 

 very small, lamellar. 



Remarks. This family, like the preceding one, contains as yet only a 

 single genus, viz., Balcenophilus Aurivillius, which in my opinion cannot be re- 

 ferred to any of the other Harpacticoid families, though in some respects it bears 

 a remote resemblance to the genus Harpacticus. 



