THKEE SPECIES OE HARPACTID COPEPODA. 139 



is much smaller than the outer. In this respect the family approaches Laophontodes, 

 save that the 1st pair of that genus resembles that of Laophonte. Moreover, the form 

 of the 1st and 2nd antennae and of the 5th feet, as well as the transformed branch of 

 the 3rd feet of the male, shows strong resemblances. As Sars remarks, the structure 

 of the 1st feet more nearly resembles that of the genus Cletodes, which undoubtedly 

 shows other alliances. 



Genus Ancorabolus, Norman. 



" Body armed with numerous horn-like, partly branched processes curving backwards, 

 and forming several rows, dorsal, subdorsal, and lateral. Rostral projection well defined, 

 narrow linear. Anterior antennae in female composed of only 3 joints, in male 

 5-articulate and distinctly hinged. Posterior antennae with the distal joint very slender, 

 linear. Mandibular palp small, uniarticulate. Posterior maxillipeds very slender. 

 1st pair of legs differing conspicuously in structure from the succeeding ones ; both 

 rami biarticulate, the inner one being the longer. Inner ramus of the three succeeding 

 pairs much smaller than the outer, but distinctly biarticulate. 1st joint very short, 

 2nd narrow linear ; outer ramus slender, 3-articulate. Inner ramus of 2nd pairs of legs 

 in male slightly transformed. Last pair of legs with a well-defined setiferous expansion 

 inside the proximal joint, wanting, however, in male." 



Such are the characters which Sars assigns to the genus as restricted. That author 

 has changed my spelling of Ancorabolus to Anchorabolus. Why ? The generic name 

 is derived from ayKvpa. and fia\\u> (an anchor-caster) and the Latin form is Ancora 

 (more rarely Anchor a). 



Ancorabolus mirabilis, Norman. (PL 29. figs. 1-9.) 



1903. Ancorabolus mirabilis, Norman, " Notes on the Nat. Hist, of East Finmark," Ann. & Mag. 



Nat. Hist. ser. 7, vol. xi. p. 2. 

 1909. Anchorabolus mirabilis, G. O. Sars, Crustacea of Norway, vol. v. Copepoda, Harpacticoida, 



p. 312, pi. 211. 



Rostrum well developed, horizontally directed, cleft at the extremity, bearing one or 

 two pairs of seta? on the sides, situated on little protuberances. Cephalon and four 

 following segments ornamented with a wonderful series of simple furcate, and three- 

 branched large horn-like processes, which are arranged as follows : — The cephalon bears 

 two pairs of backward-directed horn-like processes on the back : the anterior pair are 

 simple, the posterior trifid. The margin of the cephalon bears, first, a simple lancet- 

 shaped spine followed by a larger trifid process, followed by a bifid, and posterior to this 

 a trifid process. These are all of large size. The following four segments have a pair 

 of simple dorsal processes, beneath which are subdorsal processes, which on the three 

 earlier segments are bifid, but on the last of larger size and simple. On the lateral 

 margin are very large falcate processes, curving backwards. The three earlier segments 

 of the urosome are furnished with subdorsal simple and lateral processes. These lateral 

 processes gradually increase in size backwards from the head to the 3rd segment of the 



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