S. I. Smith — Crustaceans of the Atlantic Coast. 
13V 
EXPLANATION OF PLATES. 
Plate YIII. 
Figure 1. — Cancer borealis Stimpson ; dorsal view of a small male from Casco Bay ; 
nine-tenths natural size. Figures la, 16, terminal portions of the chelipeds of the 
same specimen, seen from the outer side ; natural size. 
Plate IX. 
Figure 1. — Geryon quinquedens Smith; dorsal view of the carapax of a large male ( b ) 
from off Cape Ann; four-fifths natural size. Figure la, frontal region of the same 
specimen, seen from beneath ; one and a third times natural size. Figure 16, ter- 
minal portions of the chelipeds of the same specimen ; enlarged the same amount. 
Figure 2. — The same species ; dorsal view of the carapax of a small female (e) from 
off Massachusetts Bay ; one and a third times natural size. 
Figure 3. — Geryon tridens Kroyer; dorsal view of the carapax of a large male from 
Christiania Fiord. Norway; two-lliirds natural size. Figure 3a. frontal region of 
the same specimen, seen from beneath : one and a third times natural size. 
Figure 4. — Hippolyte pusiola Kroyer; tip of the telson of a female 20'5 mm long, from 
the Bay of Fundy, with more than the normal number of terminal spines; enlarged 
thirty-two diameters. 
Figure 5. — The same species; terminal portion of the telson of a female 16 mm long, 
from Halifax, Nova Scotia, with an abnormal arrangement of aculei and spines, 
apparently resulting from some injury ; enlarged thirty -two diameters. 
Figure 6. — The same species; terminal portion of the telson of a male, l7 mm long, 
from the Bay of Fundy, with less than the normal number of terminal spines ; 
enlarged thirty-two diameters. 
Figure 7. — The same species ; terminal portion of the telson of a male, 15 mm long, 
from near Cashe’s Ledge, off the coast of Maine, with the normal arrangement of 
spines ; enlarged thirty-two diameters. 
Figure 8. — Hippolyte Gaimardii Milne-Edwards ; tip of telson of a female, 36 mm 
long, from Halifax, Nova Scotia, with the normal armament of spines ; enlarged 
sixteen diameters. 
Figure 9. — The same species ; tip of the telson of a female, 39 min long, from Casco 
Bay, with an abnormal armament of spines ; enlarged thirty-two diameters. 
Plate X. 
Figure 1. — Pasiphae tarda Kroyer; from the Gulf of Maine; lateral view, three- 
fourths natural size. 
Figure 2. — Hippolyte Grcenlandica Miers; female from the Bay of Fundy; lateral 
view, one and a half times natural size. 
Figure 3. — Hippolyte securifrons Norman ; female from off Massachusetts Bay; lateral 
view, one and a half times natural size. 
Figure 4. — Axius serrntus Stimpson ; dorsal view of the original specimen in the col- 
lection of the Peabody Academy of Science, Salem. Figure 4a, lateral view of the 
right cheliped. 
