PLATE 4. 



Figure 35. Lampoidopus marki n. gen., n. sp. Male, geniculating part of 

 right anterior antenna, x 470. 



Figure 36. Clausocalanus furcatus Brady. Male, right foot of fifth pair. 

 X 470. 



Figure 37. Acartia spinata n. sp. Female, fifth foot. The bristle on the 

 outer margin of the second joint is not shown entire, x 500. 



Figure 38. Lampoidopus marki n. gen., n. sp. Female, posterior maxilliped. 

 The bristles are not shown, x 113. 



Figure 39. Calanopia americana Dahl. Female, fifth foot, x 500. 



Figure 40. Clausocalanus furcatus Brady. iVIale, left foot of fifth pair. 

 X 470. 



Figure 41. Pseudoeyclops magnus n. sp. Female, fifth foot, x 500. 



Figure 42. Lampoidopus marki n. gen., n. sp. Female, first foot, x 470. 



Figure 43. Acartia bermudensis n. sp. Female, fifth foot, x 500. 



Figure 44. Clausocalanus furcatus Brady. Female, fifth pair of feet, x 470. 



Figure 45. Acartia spinata n. sp. Female, first five joints of anterior an- 

 tenna from below, x 93. 



