XrV LIST OF ILLUSTRATIONS 



107. Lissa tuberosa (21927), maxilIiped,X 19.5. 



108. Paramithrax bdckstromi, male (55121), median length of carapace 16.3 mm., 



maxilliped. 



109. Thersandrus compressus (48744), maxilliped, X 17.1. 



110. Hemus cristulipes (19724), maxilliped, X 30.7. 



111. Thoe puella (14442), maxilliped, X 18.2. 



112. Thoe puella, female (14442), basal antennal article and subhepatic region, 



X 9. 



113. Thoe panamensis, female (48786), basal antennal article, X 9. 



114. Thoe aspera, male (23773), total length of carapace 10 mm. (After Rath- 



bun.) a. Carapace, dorsal viev.^ b. Merus of a right ambulatory leg. 



115. Picroceroides tubularis (24082), maxilliped, X 8.58. 



116. Pitho, appendages of first abdominal segment of male of different species, a. 



Iherminieri. b. anisodon. c. aculeata. d. mirabilis, (a, b, and c, after 

 Rathbun.) 



117. Pitho, first and second movable articles of antenna of different species, a. 



quinqxiedentata. b. Iherminieri. c. mirabilis. d. anisodon. 



118. Pitho anisodon (6424), maxilliped, X 8.58. 



119. Pitho dispar, female (24205), outline of front and orbits, from below, X 6. 



120. Leptopisa setirosiris (48658), maxilliped, X 9.16. 



121. Leptopisa setirostris, female (48667), basal article of antenna with post- 



orbital lobe, X 9. 



122. Anaptychus cornutus, male, type. a. Antennal region, ventral view. b. 



Maxilliped. (After Stimpson.) 



123. Mithrax braziliensis, male (19953), basal article of antenna, X 7. 



124. Mithrax hispidus (17962), maxilliped, X 7.6. 



125. Mithrax {Mithraculus) sculptus, male (14058), maxilliped, X 11.8. 



126. Mithrax (Mithraculus) sculptus, male (14058), basal antennal article, X 5. 



127. Mithrax (Mithraculus) nodosus, male (25673), maxilliped, X 5.4. 



128. Teleophrys tumidus (40466), maxilliped, X 13.5. 



129. Teleophrys ornatus, female (23774), carapace 5.6 mm. long. (After Rath- 



bun.) a. Carapace, dorsal view. b. Ambulatory leg. 



130. Coelocerus spinosus (9694), maxilliped, X 2.33. 



131. Stenocionops furcata (43084), maxilliped, X 2.7. 



132. Macrocoeloma trispinosum (43028), maxilliped, X 7. 



133. Macrocoeloma heptacanthum, maxilliped. (After Bell.) 



134. Macrocoeloma heptacanthum, female (21932), basal antennal article, with 



postorbital lobe, X 12. 



135. Macrocoeloma villosum, Guayaquil, maxilliped. (After Bell.) 



136. Macrocoeloma laevigatum, male (46933), basal antennal article, X 6.66. 



137. Macrocoeloma eutheca (46932), basal antennal article, X 11. 



138. Macrocoeloma intermedium (9492), basal antennal article, X 6. 



139. Microphrys bicornutus (7580), maxilliped, X 8.4. 



140. ilficrop/)r7/s ptoi/sowa (20292), basal antennal article, X 13.3. 



141. Microp/irys an;z7/cr?sis, male (43017), total length of carapace 14 mm., basal 



antennal article. 



142. Microphrys aculeatus (25677), basal antennal article, X 12.7. 



143. Microphrys branchialis (21576), basal antennal article, X 13.2. 



144. Microp/ir2/sz7iierrupiu.« (48573), basal antennal article, X 16. 



145. Microphrys triangulaius (21943), basal antennal article, X 14. 



146. Partheaope agonus (51009), maxilliped, X 11.7. 



147. Thyrjlamhru^ astrsides (9515), maxilliped, X 12. 



148. Sohnolamhrus typicus (5038S), maxilliped, X 17,7. 



149. Leiolamhrus punctaiissimus (17366), maxilliped, X 19.2. 



