136 GrEOL. AND NAT. HIST. SURVEY OF MINNESOTA. 



The swimming feet are all armed with very strong spines, aside 

 from the usual quota of spines at the end of each joint. Length 0.65 

 mm. 



GENUS ATTHEYELLA Brady. 



This genus, the diagnostic characters of which have been above 

 indicated, contains three nominal species. It is quite difficult to say 

 what differences exist between Sars' Canthocamptus i)ygnuvus and 

 Attlieyella sjnnosa. Brady did not seem to recognize the fact that his 

 diagnosis included that species. The third species is the blind A. 

 cryptorum of Brady, which it is interesting to compare with the blind 

 Bradya Umicola of the coast of the Gulf of Mexico. 



GENUS MAKSHIA Gen. nov. 



Allied with Attlieyella. Inner branch of first foot three-jointed, 

 scarcely elongated, barely subprehensile. Second and third feet with 

 outer ramus two-jointed, short. Fourth foot with minute one jointed 

 outer ramus and three jointed inner ramus. Fifth feet one jointed. 

 Antennte six-jointed, the fourth joint with a slender hyaline process 

 longer than the end of the antenna. Second antenune without obvious 

 palpus, prehensile. Maudiblar palp simple? First foot-jaw with an 

 uniciliate papillose palpus. Second foot-jaw with a long uncinate 

 special joint. Antennae of the male strongly modified. Habit, fresh 

 or brackish waters. 



*Marshia albuquerquensis sp. n. 

 Plates XXXI; XXXII, Figs. 1-5. 



Body with ten obvious segments, with the asj)ect of Ganthoeamptus. 

 Autenute short, six-jointed. The proximal joints enlarged and spinous; 

 second also tumid, with three or more cilia; third joint longer; fourth 

 with a long seta and still longer flagellum; fifth joint very short; 

 apical joint elongate bearing about ten sette. Antennules short, pre- 

 hensile, with four geniculate setfc apically and several short spines, 

 especially a transverse series of sharp teeth on the dorsal aspect. 

 Jaws with six sharp teeth. Anterior maxillipeds with a minute uni- 

 setose palp and three processes bearing curved spines. Posterior 



Note. — C. frontinalis Rebberg. Tbis autbor seems to bave parted with his usual acumen in the 

 remarks upon this species. After describing a Co?!Moc(/«)?>/ws with the inner ramus of the first foot 

 "reichlich doppelt so laug wie die beiden Grundglieder des Aussenasts," he draws a moral on the muta- 

 bility of genera from the fact that Brady founded the genus AtlhryeAla "auf grund der Eingliede des 

 innenastes am fierten Fusspaare und einer derartigen Bildung des ersten Fusses, wie er bei C. frontinalis 

 beschrieben ist." Brady says (_Bril. Copepoda, p. 5»): "Inner branch of first pair of feet scarcely at all 

 elongated, and either two- or three-.jointed," etc. The distinctive characters being the one- or two- 

 ointed second and third feet and the one-jointed inner ramus of the fourth foot, it is doubtful if C 

 roniinalis is really new. 



