CRUSTACEA. 
33 
Pinnotheres maculatum, Say, Journ. Acad. Phil. i. 450. 
a — c. Male and two females. United States, N. America. 
From the collection of Mr. Say. 
Xanthasia, White . 
Xanthasia murigera, White, Annals and Mag. Nat. Hist. 1846. 
pi- 2,f. 2. 
a, h. Females. Philippine Islands. From Mr. Cuming’s collec¬ 
tion. 
Pinnixa, White. 
Pi nnixa cylindrica. Pinnotheres cylindricum, Say, Journ. Acad. 
Phil. i. 452. 
a. Female. Georgia (Jeykill Island). From the collection of 
Mr. Say. 
Pinnixa transversalis, (Pinnotheres transversal is, Lucas, D’Or- 
higny, VAm. Mer. p. 23, pi. 10,/. 3) is apparently nearly allied 
to this. 
Family Myctiridas. 
Elamena, Edwards . 
Elamena Mathsei, Edw. Crust, ii. 35. Hymenosoma M .,Latr. 
MSS. Desm. 163. Ruppell , t. 5,/. 1. Hymenosoma mira- 
bile, Leach, MSS. Brit. Mus. 
a. Isle of France. From the collection of M. Matthieu. 
Elamena unguiformis, De Haan, Faun. Jap. t. 29,/. 1 ,p. 76. 
a. Junr. ? Philippine Islands (Siquejor). From Mr. Cuming’s 
collection. 
Hymenosoma, Leach. 
Hymenosoma orbiculare, Latr. MSS. Desm. 1 63, t. 26, f. 1. 
Edw. Crust, ii. 36. Cuv. R. A. (Crocli), t. 35,/. 1. Leachi- 
um orb., M'Leay , Ann. S. Afr. 
a — e. South Seas (olf the Cape of Good Hope.) Presented by the 
Earl of Derby. 
Halicarcinus, White. 
Halicarcinus planatus, White, Annals Sr Mag. Nat. Hist. 1846, 
pi. 2, f. 1. Leucosia planata, Fair. Ent. Syst. Suppl. 350. 
Hymenosoma Leachii, Guerin, Icon . t. 10, /. 2. Voy. Co- 
quille, ii. p. 22. Hymenosoma tridentatum, Homhr. fy Jacq . 
Voy l Pole Sud. pi. 5,/. 27. 
a—l. Falkland Islands, Presented by W. E. Wright, Esq. 
