488 PROCEEDINGS OF THE NATIONAL MVSEVM. vol. xxxiii. 



Plate XXIII. TYve ieva.^\e oi Dinematura 'productaMuWex. 



Fig. 79, Dorsal view, egg strings 40 mm. in length; fig. 80, Second antenna; fig. 80a, 

 Mouth tube and second maxillae; fig. 81, Second maxilla, enlarged; fig. 82, Second 

 maxilliped; figs. 83 to 86, First, second, third, and fourth swimming legs; fig. 87, 

 Ventral view of genital segment and abdomen, showing the abdomen (a), and sixth 

 segment {x) with its rudimentary legs (/)• 



Plate XXIV. The female of Dinematura latifolia Steenstrup and l.,utken. 



Fig. 88, Dorsal view, egg strings 30 mm. in length; figs. 89 and 90, First and second 

 maxillipeds; figs. 91 to 94, First, second, third, and fourth swimming legs; fig. 95, 

 Fourth swimming leg of male; fig. 96, Ventral view of genital segment and abdomen, 

 showing cement glands (c. g.), spermatophores (s) in position, sixth segment (x) with 

 its rudimentary legs (Z) and the abdomen (a). 



Plate XXV. The male of Dinematura latifolia Steenstrup and Liitken. 



Fig. 97, Dorsal view; fig. 98, Second antenna; fig. 99, First maxilliped; fig. 100, 

 Mouth-tube and second maxillse; figs. 101 to 103, First, second, and third, swimming 

 legs; fig. 104, Mandible; fig. 105, Ventral view of genital segment, showing sperma- 

 tophore receptacles. 



Plate XXVI. The male of Pandarus brevicaudis Dana. 



Fig. 106, Dorsal view; fig. 107, Second antenna; fig. 108, Second maxilliped; fig. 

 109, First maxilliped; figs. 110 to 113, First, second, fourth, and third swimming legs. 



Plate XXVII. The female of Pandarus bicolor Leach. 



Fig. 114, Dorsal view, egg-strings 13 mm. in length; fig. 115, Ventral view of cara- 

 pace, showing first and second antennae and their adhesion pads; fig. 116, Mouth-tube 

 and second maxillae; figs. 117 and 118, First and second maxillipeds; figs. 119 to 122, 

 First, second, third, and fourth swimming legs; fig. 123, Ventral surface of genital 

 segment and abdomen, showing adomen (a), short anal lamina? (a. I.), spermatophores 

 (s) in position and semen receptacle (s. r.). 



Plate XXVIII. The female and male of Pandarus cranchii Leach. 



Fig. 124, Dorsal view of female; egg-strings 8.5 mm. in length; fig. 125, Second 

 antenna; fig. 126, Second maxilliped; figs. 127 to 130, First, second, third, and fourth 

 swimming legs; fig. 131, Ventral view of genital segment and abdomen, showing the 

 abdomen (a), the anal laminae (a. I.), spermatophores (s) in position, and the horse- 

 shoe-shaped semen receptacle (s. r.); fig. 132, Dorsal view of male; fig. 133, Mouth- 

 tube and second maxillae; figs. 134 and 135, First and second maxillipeds; figs. 136 to 

 139, First, second, third, and fourth swimming legs. 



Plate XXIX. The female of Pandarus smithii Rathbun. 



Fig. 140, Dorsal view, egg-strings 15 mm. in length; fig. 142, Second antenna; figs. 

 143 and 144, First and second maxillipeds; figs. 145 to 148, First, second, third, and 

 fourth swimming legs; fig. 149, Mouth-tube and second maxillae; fig. 150, Dorsal view 

 of young female, 3 mm. in length; fig. 151, Ventral view of abdomen and part of genital 

 segment. 



Plate XXX. The male of Pandarus smithii Rathbun. 



Fig. 152, Dorsal view; fig. 153, Ventral view of carapace, showing first and second 

 antennae and their adhesion pads; figs. 154 and 155, First and second maxillipeds; 

 fig. 156, Mandible; figs. 157 to 160, First, second, third, and fourth swimming legs; 

 fig. 161, Dorsal view of young female 4.5 mm. in length. 



