636 PATAGONIAN EXPEDITIONS: ZOOLOGY. 



4. Mount of Observation, about 50 miles southwest of Santa Cruz. 



5. Mouth of Santa Cruz River, situated at about 50 S. 



6. San Julian, about 50 miles northeast of Santa Cruz. 

 Freshwater material has been collected at numerous localities in the 



interior. This has been numbered by Mr. Hatcher according to stations, 

 and the character and description of each station is given in the text 

 under each species. All these stations are situated in the region of the 

 Rio Chico (northern tributary of the Santa Cruz River), from near the ocean 

 up to the foothills of the Cordilleras, in 47-50 S. The localities Sierra 

 Oveja and Sierra Ventana are on the Rio Chico. Arroyo Gio is in the 

 foothills of the Cordilleras. 1 The highest altitude at which specimens 

 were obtained is at about 2,000 feet. 



LIST OF SPECIES REPRESENTED IN THE COLLECTION. 



CIRRIPEDIA. 



1. Lepas anatifera L. 



2. Elminius kingi Gr. 



3. Balanus Iceuis Brug. 

 COPEPODA. 



4. Psetidoboeckella longicauda (Dad.). 



5. Pseudoboeckella entzi (Dad.). 

 BRANCHIOPODA. 



6. Herpetocypris obliqiia Dad. 



7. Eucypris sarsi Dad. 



8. Daphnia hastata Sars. 



9. Lepidurns hatcheri sp. nov. 



10. Branchinecta granulosa Dad. 

 ISOPODA. 



1 1 . lais pubescens ( Dan. ) . 



12. Edotia tuber culata (Gur.). 



13. Rocinela australis Sch. & Mein. 



14. Exosphceroma gigas (Leach). 



15. Exospharoma lanceolatum (Wh.). 



1 6. Cymodocea darwini Cunn. 



1 7. Dynamene eatoni Mrs. 



1 8. Cassidina emarginata M.-E. 



'See Hatcher, J. B., Rep. Princeton Exped. Patagonia, vol. i, Narrative and Geography, map. 



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