REPORT OF COMMISSIONERS OF INLAND FISHERIES. 75 



Fifth feet forming a symmetrical plate, each side of which is three- 

 lobed, the external lobe bearing a short curved bristle. 



Male: — First antenna 8-jointed; two basal joints like those of 

 female antenna; 3rd joint shorter than in the female with similar 

 accessory branch and esthetask; 4th joint of similar size and shape 

 to the 3rd joint of the female antenna, but with an esthetask upon an 

 unjointed projection; 5th joint smaller, broader than long; 6th joint 

 longer than broad, concave in front; 7th and 8th joints small; 7th 

 with a projecting knob in front, 8th with four moderately long bristles. 



The 5 foot is similar to that of the female, but is more slender 

 and lacks the bristles. 



Length, 0.47 mm. 



This species is very similar to I. coriaceus B. & R. (Brady & 

 Robertson, Ann. and Mag. Nat. Hist., ser. 4, vol. xii, p. 132, pi. i), 

 figs. 1-5. 1873; and Brady's Monograph of the British Copepoda, 

 vol. ii, p. 148, pi. Ixxxii, figs. 1-10. 1880), and to I. holothuriae 

 (Edwards) (C. L. Edwards, Abacola holothurice, Arch. f. Nat. p. 92, 

 pl. 5, figs. 1-17. 1891), but differs markedly from them in its habit 

 of swimming actively near the surface. It was taken in a number of 

 surface tows in the channel of Mill Cove, Wickford.* The rostrum 

 and 1st antenna of the female are very similar to those of I. holo- 

 thuriae. The 1st foot of male and female and the mouth-parts are 

 similar to those of I. coriaceus. This species has 5th feet entirely 

 different from those figured by Edwards, and we do not find the organ 

 between the fourth limbs of male figured by Brady. 



*Lichomolgus fucicolus Brady. 



Wickford and Charlestown Pond. 



*Lichomolgus adherens n. sp. Plate II. 



Female. — Thorax ovate; cephalic segment forming more than 

 half of thorax, three free thoracic segments nearly equally broad, 

 outer angles rounded. Abdomen 6-jointed, L 22 15 m is w 20 • 

 First and 2nd (genital) segments broader than the others; pos- 



