282 RECORD OF SCIENCE FOR 1887 AND 1888. 



Texas section of the American Cretaceous, the author gives lists — :of 

 fossils of the upper division of the Texas Cretaceous (pp. 294, 295), 

 of the middle division of the Texas Cretaceous (pp. 297, 299), of the 

 upper or Washita division of the Lower Cretaceous (pp. 302, 303), of the 

 Fredericksburgh division (p. 305). The author notes the fact of an ap- 

 parent continuity of interlocking faunas throughout the series, but 

 with the exception of Gryphcea pitcheri, Mort., not a single species is 

 known to pass from the Comanche series into the upper formations. 

 He further observes that the fauna of the Comanche series presents 

 closer resemblance to those of Europe and tropical America than to 

 other Cretaceous faunas of the United States. 



Mr. W J McGee (177-178) contributes two papers, mainly strati- 

 graphical and structural, on the formations of the Middle Atlantic 

 slope; no extended pahieontological facts are given, but the author 

 mentions occasionally the species characteristic of the formations. 



Eugene A. Smith, in conjunction with Lawrence C. Johnson (241), 

 published a valuable contribution to the knowledge of the Tertiary and 

 Cretaceous strata of Alabama. The bulletin deals mainly with geolog- 

 ical facts, but there is frequent reference to the species of fossils char- 

 acterizing the strata discussed. 



C. A. White (278), commenting upon the age of the coal found in the 

 region traversed by the Rio Grande, refers it to the age of the Laramie 

 or Fox Hill formations. The same author (282) describes three new 

 genera and three new species from the Cretaceous, which are as follows : 



( CrassitellidcB), 



6tearnsia (gen. nov.), p. 32, with, as type, S. Eohinsi (n. sp.), p. 33, pi. ii, f. 7-9. 



{Aviculidw), 



Dalliconcha (gen. nov.), p. 34, with, as types, the following species: D. invagi- 



nata (n. sp.), P- 35, pi. ii, f. 4, 5, and Gervillia ensformis. 

 Aquilaria (gen. nov.), p. 35, with, as type, A. Cumminsi (n. sp.), 37, pi. ii, f. 1-3. 



C. A. White (283) gives an account of the results of examinations of 

 the Texas Cretaceous, with R. T. Hill as field assistant. The fossils 

 have not been fully studied, but enough is done to make clear the rela- 

 tions of the various deposits to those of other sections. The Comanche 

 series are older than any Cretaceous deposits exhibited in any other 

 American section. A complete faunal break occurs at the top of the 

 Comanche. The upper series may be satisfactorily correlated with 

 Cretaceous formations of western and upper Missouri. 



C. A. White (285) has published a number of new species from South 

 America, which, though not strictly ai)propriate to a list of North 

 American Palaeontology, are compared with American species. The 

 author has 3 new genera and 158 new species, divided as follows : Con- 

 chifera, 58; Gasteropoda, 73; Polyzoa, 1; Cephalopoda, 9; Fresh-water 

 Mollusca, 5; Echinodermata, 12. The same author (288) reports on the 

 fossils from Hardin County, Iowa. These were examined by the author 

 and found to possess close affinities with the Mollusca fauna of the Fox 



