THE SPIDER CRABS OF AMERICA 581 



Plate 168 



Fig. 1. Macrocoeloma trispinosum, variety, male (43015), total length of carapace 

 42.6 mm., dorsal view. 

 2. Macrocoeloma trispinosum nodipes, male (46915), total length of carapace 

 44.8 mm., dorsal view. 



Plate 169 



Fig. 1. Macrocoeloma diplacanthum, female (9365), total length of carapace 

 28.2 mm., dorsal view. 



2. Macrocoeloma laevigaium, male (46933), total length of carapace 24.8 



mm., dorsal view. 



3. Same, ventral view. 



Plate 170 



Fig. 1. Macrocoeloma eutheca, female (46932), total length of carapace 24 mm., 

 dorsal view. 



2. Macrocoeloma intermedium, male (9492), total length of carapace 25.3 



mm., dorsal view. 



3. Macrocoeloma concavum, female (24214), total length of carapace 37 mm., 



dorsal view. 



Plate 171 



Fig. 1. Macrocoeloma eutheca, female (46932), total length of carapace 24 mm., 

 ventral view. 



2. Macrocoelovia intermedium, male (9492), total length of carapace 25.3 



mm., ventral view. 



3. Macrocoeloma concavum, female (24214), total length of carapace 37 mm., 



ventral view. 



Plate 172 



Macrocoeloma subparallelum, male (48666), total length of carapace 34.6 mm. 



Fig. 1. Dorsal view. 

 2. Ventral view. 



Plate 173 



Fig. 1. Macrocoeloma heptacanthum, female (21933), total length of carapace 

 11.1 mm., dorsal view. 



2. Macrocoeloma septemspinosum, male (15128), total length of carapace 



24 mm., dorsal view. 



3. Same, ventral view. 



Plate 174 



Fig. 1. Microphrys interruptus, male, Antigua (Mus. S. U. I.), total length of 

 carapace 16.7 mm., dorsal view. (After Rathbun.) Photograph lent 

 by the State University of Iowa. 



2. Microphrys interruptus, male (48753), total length of carapace 10.7 mm., 



ventral view. Rhizocephalid parasite under abdomen. 



3. Same, dorsal view. 



4. Macrocoeloma camptocerum, male (46912), total length of carapace 40.8 



mm., ventral view. 



Plate 175 



Microphrys bicornutus, male (7580), total length of carapace 36.8 mm. 



Fig. 1. Dorsal view. 

 2. Ventral view. 



