MUSEUM OF COMPAKATIVE ZOOLOGY. 103 



TLATE V. 



Fig. 1. Rhachocaris longirostra. Lateral view of female from Station 330, enlarged 



two diameters. 

 " 2. Rhachocaris Agassizii. Lateral view of female from Station 326, natural 



size. 

 " 3. Rhachocaris sculpta. Lateral view of female from Station 339, natural size. 



PLATE VI. 



Fig. 1. Rhachocaris longirostra. Dorsal view of carapax and anterior appendages 



of the specimen figured on Plate; V., enlarged two diameters. 

 " 2. Rhachocaris Agassizii. Dorsal view of the specimen figured on Plate V., 



natural size. 

 11 3. Rhachocaris sculpta. Dorsal view of the specimen figured on Plate V., 



natural size. 

 " 3*. First maxilla of the right side of the same specimen enlarged six diameters. 

 " 3\ Second maxilla of the right side of the same specimen, enlarged four 



diameters. 

 " 3°. First maxilliped of the right side of the same specimen, enlarged sLx 



diameters. 

 " 3 d . Second maxilliped of the right side of the same specimen, enlarged four 



diameters. 



PLATE VII. 



Fig. 1. Pontophilus breviroslris Smith. Dorsal view of adult female, enlarged two 

 diameters. 



Lateral view of the carapax of the same specimen, enlarged two diameters. 



Dorsal view of rostrum of the same specimen, enlarged eight diameters. 



Pontophilus gracilis. Dorsal view of female, enlarged two diameters. 



Lateral view of the carapax of the same specimen, enlarged two diameters. 



Appendage of the left side of the first somite of the abdomen of the same 

 specimen, enlarged eight diameters. 



Appendage of the left side of the second somite of the abdomen of the same 

 specimen, enlarged eight diameters. 



Appendage of the left side of the first somite of the abdomen of a male taken 

 off Martha's Vineyard by the U. S. Fish Commission, Station 1029, en- 

 larged eight diameters. 

 3*. Appendage of the left side of the second somite of the abdomen of the same 

 specimen, enlarged eight diameters. 



4. Ccraphilus Agassizii. Dorsal view of female from Station 326, natural BUB, 

 4*. Lateral view of the carapax of the sunn 1 specimen, natural si/e ; a, anterior 



gastric spine ; b, rostrum ; <•, orbital spine ; d, anterolateral angle 



5. Lateral view of carapax and abdomen of a male from Station 317, enlarged 

 two diameters ; a, b, c, d, the same as in fig. 4\ 



5*. Dorsal view of carapax of the same specimen, enlarged two diameters ; 

 a, c, d, the same as in fig. 4\ 



