311 



Occurrence. I have met with this small Copepod occasionally at Farsimd, 

 and more frequently at Korshavn, near Lindesnaes, the southernmost point of 

 Norway. It occurs in moderate depths, ranging from 6 to 20 fathoms. 



Distribution. Scottish coast (Scott). 



Fam. 15. Anchorabolidae. 



Characters. Body slender, tapering behind, with no sharply marked 

 boundary between the anterior and posterior divisions. All the segments very 

 sharply defined and, excepting the last 2 or 3, produced to peculiar horn-like 

 projections, either dorsal or lateral, or both dorsal and lateral, cephalic segment 

 somewhat flattened in front, with the antero-lateral corners generally produced, 

 rostral projection of varying shape in the different genera, in some cases wanting. 

 Genital segment imperfectly subdivided in female. Caudal rami long and slender, 

 with one of the apical setae much elongated. Eye wholly absent. Anterior an- 

 tennae with the number of joints much reduced, terminal part (in female) uniar- 

 ticulate. Posterior antennae without any trace of an outer ramus. Oral parts 

 poorly developed, but on the whole of normal structure. Natatory legs slender 

 and projecting more or less laterally, 2nd basal joint obliquely produced; 1st 

 pair generally differing in structure from the others, but never prehensile. Last 

 pair of legs with the distal joint long and slender, proximal joint generally pro- 

 duced outside to a long narrow process tipped with a slender bristle. A single 

 ovisac present in female. 



Remarks. The present new family, the type of which is the remarkable 

 Copepod, Anchorabolus mirabilis, described by Norman, in some respects strongly 

 resembles the genus Laophontocles among the Laophontidce. The structure of the 

 1st pair of legs, however, is very different, and agrees better with that in the Cle- 

 to<lid(e, where they are not prehensile at all. The remarkable armature of the 

 body is another character distinguishing the present family very conspicuously 

 from most other Harpacticoida. In addition to the typical species described by 

 Norman, 3 other forms will be described below, each of them exhibiting a very 

 characteristic armature of the body, and also differing so much in other par- 

 ticulars from each other and from the type, that I have felt justified in regarding 

 them as types of as many separate genera. 



