138 
S. I. Smith — Crustaceans of the Atlantic Coast. 
Plate XI. 
Figure 1 . — FRppotyte polar is Ross: anterior pleopod of the left side of a male, 394 mm 
long, from the Gulf of Maine : enlarged twelve diameters. 
Figure 2. — Inner lamella of the left pleopod of the second pair of the same specimen ; 
enlarged the same amount. 
Figure 3. — The same species : anterior pleopod of the left side of a female, 45 ,nm long, 
from near Cashe s Ledge, off the coast of Maine ; enlarged twelve diameters. 
Figure 4. — Inner lamella of the left pleopod of the second pair of the same specimen : 
enlarged the same amount. 
Figure 5. — Sabinea septemcarinata Ross: dorsal view of the carapax of a female from 
off Massachusetts Bay : enlarged two diameters. 
Figure 6. — Sabinea Sarsii Smith; dorsal view of the carapax of a female, 62 m “ long, 
from the Lofoten Islands. Norway : enlarged two diameters. Figure 6a, lateral view 
of the same. Figure 6 b. dorsal view of the extremity of the abdomen of the same 
specimen, showing the right uropod and the telson ; enlarged three diameters. 
Figure 6c. tip of the telson of the same specimen : enlarged twelve diameters. 
Figure 7. — The same species; tip of the telson of a female, 36 mm long, from the Gulf 
of Maine: enlarged twelve diameters. 
Figure 8. — The same species : tip of the telson of a young specimen, only 1 6 m “ long, 
from St. George's Bank : enlarged twenty -four diameters. 
Figure 9 . — Sabinea septemcarinata Ross : dorsal view of the extremity of the abdomen 
of a female from off Massachusetts Bay. showing the appendages of the right side 
of the sixth segment and the telson ; enlarged three diameters. 
Figure 10 — The same species; tip of the telson of an adult male. 40 mm long, from off 
Massachusetts Bay. with what appears to be the normal arrangement of the terminal 
spines; enlarged twelve diameters. 
Figure 1 1 . — The same species ; tip of the telson of an adult female, about 60 mm long, 
from off Massachusetts Bay. with the normal armament; enlarged twelve diameters. 
Figures 1 2 and 1 3. — The same species ; tips of the telsons of two adult females from 
off Massachusetts Bay. with an apparently abnormal arrangement of terminal spines 
— in the second case evidently the result of injury ; enlarged twelve diameters. 
Plate XLL 
Figure 1. — Mderythrops robusta Smith ; dorsal view of the front part of a male. 19 mm 
long, from the Gulf of St. Lawrence ; enlarged six diameters. Figure 1 a, one of 
the anterior pleopods of the same specimen ; enlarged twelve diameters. 
Figure 2. — The same species: antennal scale of a female. 16‘5' nm long, from the Gulf 
of St. Lawrence : enlarged twenty-four diameters; the marginal plumose seta- 
omitted. Figure 2a. dorsal view of the lamella of the uropod of the left side of 
the same specimen: enlarged fifteen diameters. Figure 2b. a pan of the inner 
margin of the inner lamella, more highly magnified to show the marginal spines and 
the bases of the plumose seta. F igure 2c, telson of the same specimen : enlarged 
thirty diameters. Figure 2d. tip of the same telson, more magnified. 
Figures . — JPseudomma alum Smith: dorsal view of the antenna of an adult 
male : enlarged thirty diameters. Figure 3a. outline of the ophthalmic segment of 
the same specimen : enlarged thirty diameters. Figure 3 b, tip of the telson of the 
same specimen : enlarged thirty diameters ; the cilia of the median seta omitted. 
Figure 4. — The same species ; telson of an adult female : enlarged thirty diameters ; 
the cilia of the median terminal seta omitted. 
