86 ME. T. SCOTT ON ENTOMOSTEACA 



(night collection). Station 21 (off tlie mouth of the Congo), sui*face, Fchruary 6th (two 

 day collections). Also in surface gatherings collected on the 8th February at the following 

 localities :— Lat. 5^ 56' 5" S., long. 11^ 17' 2" E. ; lat. 5' 54' 4" S., long. 10^ 50' 7" E. ; 

 lat. 6" 3' 3" S., long. 11° 7' 5" E. ; lat. 6 29' 4" S., long. 11° 24' 8" E. ; lat. 6° 39' 5" S., 

 long. 11 24' 7" E. ; and on the 9th Eebruary at lat. 7' 38' S., long. 12° 3' 3" E. 



Pontella inermis was observed only in tow-nettings from the localities described above. 

 Tliey were all surface gatherings, and comprised four day and five night collections. 



Pontella secubifer, Brady. 



1883. Pontella securifer, Brady, Report Cliall. Copep. p. 96, pi. xlv. figs. 1 9. 



Sabitat. Lat. 3° 57' 2" N., long. 7° 42' 8" W., 2 fathoms, January 9th (night collections). 

 Lat. 0° 22' 4" N., long. 7 59' 8" E., surface, January 29th (day collection). Station 

 23, surface, day collection, Eebruary 5th. Lat. 5 56' 5" S., loQg. 11" 17' 2" E., surface, 

 Eebruary 8th (night collection), also on the same date at lat. 6° 3' 3" S., long. 11° 7' 5" E., 

 surface (day collection) ; lat. 6° 23' 3" S., long. 11° 3' 8" E., surface (day collection) ; lat. 



6 29' 4" S., long. 11° 24' 8'' E., surface (night collection). On the 9th February at lat. 



7 38' S., long. 12° 3' 3" E., surface (night collection) ; lat. 8 36' 8" S., long. 12° 57' E., 

 surface (day collection) ; and on Eebruary 18th at lat. 5 53' S., long. 11 31' 1" E. 



A11 the tow-nettings in which Pontella securifer was obtained were surface gatherings, 

 and comprised five day and four night collections. This species is readily distinguished 

 horn, fhe, oi\\Gv FontellcB by the remarkable "hatchet-shaped" appendage of the right 

 male antennae. A few specimens only of this interesting species were obtained. 



Pontella (?) mediterranea (Claus), var. gaboonensis, nov. var. (PI. V. figs. 43-48.) 



1863. Pontell'ma mediterranea, Claus, Die freilebeiiden Copepoden, p. 211, t. ii. figs. 8-10, t. iii. 

 fig. 8, t. xxxvi. figs. 11, 12. 



Male. Length 2' 5 mm. Nostrum with prominent frontal eye as in Vontella sectirifer, 

 Brady. The posterior thoracic angles scarcely produced. Anterior antennae not 

 reaching to the end of the thorax ; that of the left side 24-jointed ; the first and second 

 joints are moderately stout, the third to the eleventh are short, while the I7th, 

 18th, 19th, and 22nd are longer than any of the others with the exception of the basal 

 joints, as shown by the annexed formula : — 



Left anterior 22 . 14 . 4 . 4 . 4.4 .4 . 4.5. o ^4 .8.8. 8 . 10.14 .Ib^ IS ^ 19 . 14 . 13 . 15 . 10 . 13 

 anteuna. T^f'WT 5 0^ 9, 9 10 11 12 13 14" 15 16 17 18 19 20 21 22 23 24' 



Several of the small proximal joints are furnished with moderately long plumose 

 setae on the upj)er edge, and a fringe of tine hairs or cilia on the lower margin (fig, 44). 

 The sixth, seventh, and eighth joints of the right antenna are abruptly and considerably 

 dilated ; the first of the three, which is also the shortest, bears a stout elongate spine on 

 its upper edge (fig. 45). The tenth and eleventh joints, which arc long, and connected 

 together by a hinged articulation, are finely toothed along the upj)er margin ; the denti- 

 culations of the tenth joint apjoear to be bifid, as shown by the figure; the penultimate 



