68 AMERICAN JOURNAL 



Habitat. Hakodadi, Japan, on Terebratella coreanica ; Stimp- 

 son. 



One specimen, agreeing with no other described species, was 

 found attached by its peduncle to an alcoholic specimen of T. 

 miniata, Gld. = T. coreanica, Ad. & Rve., in the locality indi- 

 cated. 



PLATIDIIN^E, p. 143. 



PLATIDIA, Costa. 



Platidia anomioides, Scacchi, sp. (p. 143) has been obtained 

 by M. de Pourtales in two hundred and thirty-seven fathoms, off 

 the Florida coast, and since by Mr. Jeffreys in three hundred and 

 forty-five fathoms in the Shetland Channel. This is the second 

 genus of Brachiopoda, Crania being the other, which has been 

 added to our fauna by the researches of the U. S. Coast Survey 

 parties. This species had previously been known only in the 

 Mediterranean in deep water. 



Subfamily Megathyrin2E, Dall, (p. 143.) 



The diagnosis relating to the soft parts should be amended to 

 read, 



Brachia in a single series, following the loop surrounding a 

 smooth untwisted membrane, in the median posterior part of 

 which is situated the oral groove and mouth. Mantle edge 

 without setae. 



The statement of Woodward that the mouth of Megathyris is 

 situated in the centre of the brachial disk is an error, as I have 

 since proved by dissections ; the mouth is in a position exactly 

 equivalent to that obtaining in the other brachiopods. 



Genus MEGATHYRIS, D'Orb.(p. 144.) 

 It has been stated by some authors that Savigny's name was 

 Argyope or Argyopes, and that therefore Argiope, Desl., is not 

 preoccupied; but this is an error, which a reference to the paper 

 of Thorell or to the original work of Savigny will enable them 

 to correct. 



Add to the synonymy of M. decollata, T. aperta, Hidalgo ; 

 T. ungida, Retzius, Diss., 1788 ; and T. pectiniformis, Costa, 

 all on the authority of Mr. Jeffreys ; and to the localities, Atlan- 

 tic coast of Spain, Jeffreys. 



Subgenus Cistella, Gray, (p. 145.) 

 Bull. Mus. Comp. Zool. iii, 19 PL, f. 6, 6 a, May, 1871. 

 Add to the list on p. 146, 

 Cistella (? Schrammi var.) rubrotincta, Dall. Bull. Mus. Comp. 



