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MUSEUM OF COMPARATIVE ZOOLOGY. 105 



Fig. 3. Eight second maxilla of the same specimen, seen from "beneath, enlarged 

 twelve diameters. 

 " 4. Miersia gracilis. Lateral view of young male, enlarged two diameters. 

 " 4". Distal extremity of the posterior leg of the left side of the same specimen, 



enlarged eight diameters. 

 " 4 b . Rami of the appendage of the right side of the first somite of the abdomen 

 of the same specimen, seen from behind, enlarged eight diameters ; the 

 marginal setse of the outer ramus omitted. 

 " 4°. Portion of the base of the inner lamella of the appendage of the right side 

 of the second somite of the abdomen of the same specimen, seen from 

 behind and showing the small secondaiy stylet characteristic of the male, 

 enlarged twenty -four diameters. 

 " 4 a . Distal part of the second maxilliped of the right side of the same specimen, 

 seen from below, enlarged eight diameters. 

 Miersia Agcissizii. Lateral view of male from Station 330, natural size. 

 Second maxilliped of the left side of the same specimen, seen from below, 



enlarged eight diameters. 

 Distal extremity of the posterior leg of the right side of a male from Station 



305, enlarged twelve diameters. 

 Inner lamella of the appendage of the left side of the same specimen, seen 



from in front, enlarged eight diameters. 

 Meningodora mollis. Lateral view of female, natural size. The lateral 



carinse of the carapax are indicated by simple lines. 

 Outline of the right eye of the same specimen, seen from above, enlarged 



two diameters. 

 Second maxilliped of the right side of the same specimen, seen from below, 

 enlarged eight diameters. 



PLATE XLT. 



Fig. 1. Miersia Agassizii. Distal portion of the left mandible of the specimen 



figured on Plate XI. fig. 5, seen from beneath. 

 " 1". The same mandible seen from above. 



" 2. First maxilla of the left side of the same specimen, seen from beneath. 

 " 3. Second maxilla of the left side of the same specimen, seen from beneath. 

 " 4. First maxilliped of the left side of the same specimen, seen from beneath. 

 " 5. Meningodora mollis. Distal portion of the right mandible of the specimen 



figured on Plate XI. fig. 8, seen from beneath. 

 " 5 s . The same mandible seen from above. 



6. First maxilla of the right side of the same specimen, seen from beneath. 

 " 7. Second maxilla of the right side of the same specimen, seen from beneath. 

 " 8. First maxilliped of the right side of the same specimen, seen from beneath. 

 " 9. Distal extremity of posterior leg of the same specimen, enlarged twenty-four 



diameters. Wfi ^ 



" 10. Miersia gracilis. Endopod and exopod of the second maxilliped of the 

 right side of the specimen figured on Plate XL fig. 4. 



All the figures, except Fig. 9, are enlarged eight diameters. 



