170 REPORT OF NATIONAL MUSEUM, 1885. 



John A. Ryder. Development of the spines of the anterior dorsal of Gasterosteus 

 and Lopbius. 



Am. Naturalist, April, 1885, p. 415. 



John A. Ryder. On the position of the yolk -blastopore as determined by the size 

 of the vitellns. 



Am. Nat., April, 1885, pp. 411-415. 



John A. Ryder. Tbe life history of the oyster. 



The Fisheries and Fishery Industries of the United States, i, part iv, pp. 711-758, plate 259. 



P. L. Sclater. On the Muscicapine genus Chasiempis. 



The Ibis, fifth series, iii, pp. 17-19, pi. 1. 



Chasiempis sclatcri, Iiidgw., the types of which belong to the National Museum collection, is 

 figured on plate i. It is supposed to be tbe female of G. sandivichensis, the male of which is 

 also figured on the same plate. 



R. W. Shufeldt. Variations in the form of the beak, that take place daring its 

 growth, in the short-tailed Albatross, Diomedea brachyura. 



The Auk., ii, pp. 175-178. Four outline figures. 



Sidney I. Smith. Description of a new crustacean allied to Homarus and Nephrops. 



Proe. U. S. Nat. Mus. viii, June 1, 1885, pp. 167-170. 



This form, which is new botb generically and specifically, has been named Eunephrops 

 Bairdii. It was taken by the IT. S. Fish Commission steamer Albatross in the Gulf of Darien, 

 Caribbean Sea, in 1884, at a depth of 155 fathoms. But a single specimen, a female, was 

 obtained. 



Sidney I. Smith. On some genera and species of Penaida', mostly from recent dredg- 

 ings of the United States Fish Commission. 



Proc. V. S. Nat. Mus., viii, June 1, 1885, pp. 170-190. 



The following genera are defined: 



Pa^a 



Penceus Fabr. (restricted) 170 



Parapenceus, gen. nov 170 



HymenopencPAis Smith 179 



Solenocera Lucas 185 



Xiphopeneus Smith 188 



And the following new species are descrihed: 



Parapenceus megalops 172 



Parapencsus Goodei 176 



Jlymenopenceus robustus 180 



Hymenopenams modestus 183 



Many additional species, of older date, are described at some length. 



Sidney I. Smith. On some uew or little known decapod Crustacea, from recent 

 Fish Commission dredgings off the east coast of the United States. 

 Proc. 77. S. Nat. Mus., vii, 1884 (1885), pp. 493-511. 

 Two new genera are described, viz: 



Page. 



Ephyrina 506 



Benthonect.es 509 



And the following new species: 



Munidopsis crassa 494 



' ' similis 496 



Bythocaris gracilis 497 



" nana 499 



Acanthephyra microphthalma 502 



' ' brevirostris 504 



Ephyrtna Benedicti 506 



Benthonectes fdipes 509 



Rosa Smith. Notes on fishes collected at San Cristobal, Lower California, by Mr. 

 Charles H. Townsend, assistant, U. S. Fish Commission. 

 Proc. V. S. Nat. Mus., vii, Fehruary 16, 1885, pp. 551-553. 



