ILLUSTRATIONS 



PLATES Following 



page 



1-8. Species of Myochrous 64 



9. Ghrysogorgia elisa'bethae, new species: the holotype 272 



10. Barytettix poccilus (Hebard), Conalcaea miguelitana Scudder, C 



cantraUi, new species 290 



11. Barytettix humpJireysii (Tliomas), B. cochisei, new species, C 



huachucana hnachucana Rehn 290 



12. Species of Bucephalopsis, Opecoelus, and Pseudopecoelus 340 



13. Species of Helicornetrina, Opechona, Steplianostomum, Pleorchis, 



Diplangus, and Haplosplanchnns — 340 



14. Actinian fauna from the Gulf of California 448 



15. A paratype of Chaetodon tinkeri, new species, and C. quadrimaculatus 



Gray, from the northern Marshall Islands 486 



16. Panihera angusta (Leidy), USNM 18262 511 



17. Location and intensity of certain spots found on the bodies of four 



species of Archamia: A. lineolata (Cuvier and Valenciennes), A. 

 fucata (Cantor), A. dispilus, new species, and A. higuttata, new 

 . name 596 



18. Apogon ennani, new species, A. Jjandanensis Bleeker, A. miMlus 



Garman, and Paramia hipunctata, new species 596 



19. Apogon savayensis Gunther, from the northern Marshall Islands 596 



TEXT FIGURES 



Page 



1. Planes minutus, male ; P. cyaneus, male ; Pachyrapsus marinus, male 



paratype 69 



2. Right chela, second walking leg, abdomen, and first right pleopod 



of Planes minutus, P. cyaneus, and Pachyrapsus marintis 71 



3. Carapace growth in males of Planes minutus, P. cyaneus, and Pachy- 



grapsus marinus 74 



4. Scatter diagram showing the variation in proportions of the carapace 



in Planes minutus, P. cyaneus, and Pachygrapsus marinus 75 



5. Relative growth of the carapace in Planes minutus, P. cyaneus, and 



Pachygrapsus marinus, based on mean values plotted logarithmi- 

 cally 76 



6. Scatter diagram showing the variation in the combined length of the 



three terminal segments of the second walking leg in Planes minutus, 



P. cyaneus, and Pachygrapsus marinus 77 



7. Relative growth of the three terminal segments of the second walking 



leg in Planes minutus, P. cyaneus, and Pachygrapsus marinus, based 



on mean values plotted logarithmically 78 



8. Map. Known distribution of the species of Planes based only on 



locality records that are apparently valid and reasonably exact- 80 



9. Paranthura elegans, new species: Holotype 107 



10. Paranthura elegans, new species 108 



VI 



