102 BULLETIN OF THE 



PLATE III. 



Fig. 1. Pcntachdcs sculptus Smith. Dorsal view of female, from Station 326, 

 natural size. 



PLATE IV. 



Fig. 1. Pentachchs sculptus Smith. Ventral view of the eephalo-thorax of the 

 specimen figured on the last plate, the distal portions of the appendages 

 omitted, natural size ; a, tubular process containing the canal of the green 

 gland ; b, process of the ophthalmic lobe. 



" 2. Mandible and lobe of metastome of the right side, as seen in place from 

 below, from the male from Station 326, enlarged about two diameters. 



" 2*. Palpus of the same mandible, seen from below, enlarged about two diameters. 



" 3. First maxilla of the right side of the same specimen, seen from below, en- 

 larged about two diameters. 



" 4. Second maxilla of the right side of the same specimen, seen from below, 

 enlarged about two diameters. 



" 5. Diagrammatic outline of the anterior portion of the first maxilliped of the 

 right side of the same specimen, as seen in place from below, enlarged 

 about two diameters ; a, proximal, and a', distal lobe of the protopod ; 



b, base of endopod, the terminal portion being entirely hidden by the ex- 

 opod ; c, basal portion of the exopod ; d, e, terminal lobes of the ezopod. 



5*. The same maxilliped removed from the animal, slightly compressed and seen 

 from a little one side and below, enlarged about two diameters ; a, a', b, 



c, d, same as in last figure ; f, g, epipodal lamella. 

 5 b . Terminal portion of the same maxilliped, seen from above under slight 



pressure, enlarged about two diameters ; lettering the same as in figures 

 5, 5\ 



6. Second maxilliped of the right side of the same specimen, enlarged abont 

 two diameters. 



7. External maxilliped of the right side of the same specimen, enlarged two 

 diameters ; a, rudimentary epipod. 



8. Chela of the right great cheliped of the female figured on Plate III., 

 natural size. 



9. Chela of the right leg of the second pair of the male from Station 326, en- 

 la rged about two diameters. 



10. Rudimentary chela of the right leg of the third pair of the same specimen, 

 enlarged about two diameters. 



11. Rudimentary chela of the right leg of the fifth pair of the same specimen, 

 enlarged about two diameters. 



12. Rudimentary chela of the right leg of the fifth pair of the female from 

 Station 898, U. S. Fish Commiasion, enlarged aboat two diem 



13. Appendage of the left side of the fust somite of the abdomen of the female 



fignred on Plate III., enlarged aiiout two diamsto 



14. Appendage of the left side of the first somite of the male from Station 326, 

 enlarged about two diameters. 



