116 Mr. J. Lubbock on two neiv species 0/ Calanidse. 



second, on the other hand, is the type of a new genus which I 

 propose to call Monops [fiovo^, one ; clyyfr, eye) . It differs from 

 Anomalocera in having no superior eyes ; and resembles Labido- 

 cera magna more than any other species that I know. 



I will first give short specific descriptions of all the species at 

 present known in which the anterior antenna is provided with 

 dentated plates ; then describe the two new species at length ; 

 and finish with a few words on the classification and geogra- 

 phical distribution of the group, with a comparison of all the right 

 male antennae. 



Pontella Bairdii, n. s. 



Antenna antica maris dextra duabus dentatis lamellis instructa, api- 

 calilong. ^unc. Spina prehensili parva, rigido crini simili. Ramo 

 interne pedis postici maris sinistri, papillose. Pede postico foeminse 



long. ^V- 

 Color? 

 Long. cir. -§■• 

 Hah. Atlanticum oceanum, S. Lat. 20°, Long. 0°. 



Labidocera Darwinii, Lubk. 



Antenna antica maris dextra duabus dentatis lamellis instructa, api- 

 cali long, xho- Spina prehensili parva, rigido crini simili. Ramo 

 interno pedis postici maris sinistri, annuloso. Pede postico fccminse 

 long. 7T-. . . 



Cseruleo-viridis, interdum fusco maculatus. 



Long. cir. \. 



Hah. Atlanticum oceanum, S. Lat. 38°, W. Long. 65°. 



Labidocera Patagoniensis, Lubk. 



Antenna antica maris dextra tribus dentatis lamellis instructa. Spina 

 prehensili magna. Pede postico maris sinistro ; forti, ad apicem 

 acuto et comeo, ramum internum non gerente. Pede postico foe- 

 minse parvo, ramum internum non gerente. 



Long. cir. \. 



Hah. Atlanticum oceanum, S. Lat. 38°, Long. 65° W. 



Labidocera magna, Lubk. 



Antenna antica maris dextra quatuor dentatis lamellis instructa. 

 Spina prehensili maxima, annulosa. Pede postico maris sinistro, 

 magno, ad apicem tumido, papilloso ; ramo interno nuUo. 



Long. cir. \. 



Hah. Atlanticum oceanum, S. Lat. 18° 40', Long. 2° 30' W. 



Monops grandis, n.s. 

 Antenna antica maris dextra duabus magnis dentatis lamellis in- 



