PATAGONIAN EXPEDITIONS I PALEONTOLOGY. 



EXPLANATION OF PLATE XIII. 



PAGE 

 Fig. I. SCHIZASTER AMEGHINOI V. Ih. . . . . 62 



Patagonian beds. 



i a. Upper view of an almost complete cast; Mouth of Santa 



Cruz River, 

 i^. Upper view of fragment of shell, showing fascicle ; Oven 



Point, San Julian. 

 Fig. 2. SERPULA PATAGONICA Ortm. ... ..... 63 



Patagonian beds; Oven Point, San Julian. Colony on a fragment of Pecten. 

 Fig. 3. MELICERITA TRIFORIS Ortm. ........ 65 



Patagonian beds ; Uppef Rio Chalia. 

 30. Fragment of zoarium. 

 3<5. Zooecia, enlarged. 



Fig. 4. ASPIDOSTOMA GIGANTEUM (Bsk.). ... . ... 67 



Patagonian beds ; mouth of Santa Cruz River. Group of zocecia, with 



ocecium, enlarged. 

 Fig. 5. TENNYSON: A SUBCYLINDRICA Ortm. ....... 69 



Patagonian beds ; mouth of Santa Cruz River. 

 5#. Zoarium. 



5^. Fragment of branch, showing zooecia, etc., enlarged. 

 Fig. 6. HETEROPORA PELLICULATA Wat. ....... 69 



Patagonian beds ; Oven Point, San Julian. Zoarium. 



Fig. 7. TEREBRATELLA DORSATA (Gmel.) 74 



Patagonian beds ; Lake Pueyrredon, base. 



"ja. Anterior view of a large individual. 

 "]b. Front view of the same. 



jc. Anterior view of a smaller, oblique individual. 

 7</. Anterior view of an unusually elongate individual (transi- 

 tional to T. patagonica). 



Fig. 8. TEREBRATELLA PATAGONICA (Sow.). . . . . - . . . 75 

 Patagonian beds. 



8a. Anterior view of elongate variety ; Lake Pueyrredon, base. 

 86. Anterior view of a very large individual of usual outline ; 

 Oven Point, San Julian. 



Fig. 9. BOUCHARDIA ZITTELI V. Ih. ........ 79 



Patagonian beds : Lake Pueyrredon, base. 

 90. Anterior view, natural size. 

 qb. The same, 2/1. 



All of the figures, unless otherwise stated, are natural size. 



(VOL. iv) 



