OF NORTH AMERICA. 
53 
Observations. — Some specimens of this coral are quite large and sometimes much curved, having 
a semi-circular form. It was first found on Stansbury’s island, in Great Salt Lake, by Capt. Stansbury, 
and described under the name of that skillful officer by Hall; see: Ex0ration of the Great Salt Lake, 
p. 408; pi. I, fig. 3, 3 a, 3 b. The figures in this report are evidently of a young specimen of this spe- 
cies. 
Locality. — Abundant in the Mountain Limestone of the Rocky mountains. I saw a great many 
at Tigeras, on the summit of the Sierra de Sandia, and at Pecos village. The limestone in which 
it is found is so hard, that it is difficult to obtain well preserved and complete specimens. 
Explanation of figures. — Plate VII , fig. 7. Fragment showing the interior of the turbine. Found at Tigeras. 
ZAPHRENTIS CYLINDRICA Milne Edwards and Jnles Haime. 
Plate VII, fig. 8. 
Description. — « Coral very long, almost cylindrical, more or less curved and having large circular accretions, 
«etc.)> (See: A Monograph of the British Fossil Corals, third part. Corals from the Mountain Limestone , page 172; 
plate XXXV, fig. 1, 1 a, i b.) 
Locality. — This gigantic species of coral, so common in the Mountain Limestone of England, 
Belgium and France, had not been found previously in America. I saw a great number of specimens 
in ascending the Sierra de Sandia from Antonito, and several limestone beds were full of them. 
I also found it at Tigeras. 
Explanation of figure. — Plate VH , fig. 8. Fragment of a large specimen from the Sierra tie Sandia. 
AMPLEXUS CORALLOIDES? Sow. 
My late and lamented friend Jules Haime with some hesitation connected with this species (See: 
A Monograph of the British Fossil Corah, p. 173 ; pi. XXXVI, fig. 1 , I a, 1 b, 1 c, 1 d, 1 e.) a frag- 
ment, three inches long, that I found at Pecos village. 1 have also found at Tigeras, on the summit 
of the Sierra de Sandia, at Pecos village, and at Cedar creek in the Sierra of Mogoyon, several 
unpublished Bryozoa, all belonging to the Mountain Limestone strata. 
