164 



EEPORT OF NATIONAL MUSEUM^ 1912. 



GiLMORE, Charles W. A new mosa- 

 sauroid reptile from the Cretaceous 

 of Alabama. 



Proc. U. 8. Nat. Mus., 



41, No. 1870, Jan. 



31, 1912, pp. 479- 



484, pis. 39, 40, flgs. 



1-3. 



Describes Olobidens alabam- 



aensis, a new genus and species 



of the Mosasauridae. 



The mounted skeletons of Camp- 



tosaurus in the United States Nat- 

 ional Museum. 



Proc. V. 8. Nat. Mus., 



41, No. 1878, Feb. 

 8, 1912, pp. 687- 

 696, pis. 55-61, figs. 

 1^. 



Description of two mounted 

 skeletons, Camptosaurus trowni 

 Gilmore, and C. nanus Marsh, 

 recently placed on exhibition in 

 the hall of vertebrate paleon- 

 tology in the U. S. National Mu- 

 seum. The specimens are note- 

 worthy as being very complete 

 fossil skeletons, and from the 

 fact that both are types. 



Hay, Oliver Perry. On an important 

 specimen of Edestus ; with descrip- 

 tion of a new species, Edestus mirus. 

 Proc. U. 8. Nat. Mus., 



42, No. 1884, Apr. 

 25, 1912, pp. 31-38, 

 pis. 1, 2. 



Describes and figures a new 

 species of an extinct shark of 

 the lower Carboniferous, founded 

 on a rare specimen in which 

 not only the teeth but portions 

 of the cartilaginous skull and 

 lower jaws are preserved. Also 

 reviews the relationships of 

 Edestus to Helicoi^riun, Lisso- 

 prion, and Toxoprion, and dis- 

 cusses at length the morphology 

 of the peculiar dental system of 

 these remarkable extinct sharks. 



Jackson, Robert Tracy. Phytogeny 

 of the Echini, with a revision of 

 paleozoic species. 



Memoirs Boston, 8oc. 

 Nat. Hist., 7, Jan., 

 1912, pp. 1-491, pis. 

 1-76, figs. 1-256. 

 Describes and figures a num- 

 ber of specimens in the U. S. 

 National Museum. 



Lull, Richard S. Systematic pale- 

 ontology of the Lower Cretaceous de- 

 posits of Maryland ( Vertebra ta ) . 



Maryland Oeol. 8urv., 

 Loioer Cretaceous, 

 1911, pp. 183-211, 

 pis. 11-20. 

 Gives a systematic descrip- 

 tion of all the known reptilian 

 forms from the Potomac of 

 Maryland. The following spe- 

 cies, based wholly or in part 

 on U. S. National Museum speci- 

 mens, are described as new : 

 Creosaurus potcns and Oonio- 

 pholis affinis. The conclusion is 

 reached that the weight of the 

 evidence places this fauna be- 

 yond the Jurassic into the be- 

 ginning of the Cretaceous. 



Walcott, Charles D. Middle Cam- 

 brian annelids. 



8mithsonian Misc. 

 Colls., 57, No. 5, 

 Sept. 4, 1911, pp. 

 109-144, pis. 18-23. 

 This paper describes 1 new 

 order, 7 new families, 12 new 

 genera, and 20 new species of 

 annelids, all of them being re- 

 ferred to the classes Cha?tog- 

 natha, Chaetopoda, and Gephyrea. 

 In common with the other fos- 

 sils from the Burgess shale, 

 these annelids are remarkable 

 also in the manner in which 

 even the minutest of details 

 are preserved. The reference 

 of Hyolithcs, Hyolithellus, and 

 other tube-like fossils to the 

 annelids is discussed, and 3 new 

 species of Orthotheca-like fos- 

 sils, with the animal project- 

 ing from the tube, are de- 

 scribed. A species of Hyolithcs 

 is figured, showing for the first 

 time the curved supports of the 

 fins of a pteropod. 



Middle Cambrian Branchiopoda, 



Malacostraca, Trilobita, and Mero- 

 stomata. 



SnUthsonian- Miso. 



Colls., 57, No. 6, 



Mar. 13, 1912, pp. 



145-228, pis. 24-34, 



3 figs. 

 This paper includes all of 

 the crustaceans of the sub- 

 classes Branchiopoda, Malacos- 

 tiaca, and Merostomata col- 

 lected in the Burgess shale of 



