Meere 
EIS 4e ee b b-"'€ SIM 
Bc. ( |, awUAaRY, 
CQONSPECTUS CRUSTACEORUM, &c. 
Conspectus of the Crustaeea of the Exploring Expedition 
under Capt. TR U. 8S. N. Mw fo) , 
BY 
J AMES D. DAN A. | 
Ineluding the PAGURIDEA continued, the MEGALOPIDEA, ond te NACROUMA. d 
[From the Proceedings of the Academy of Natural Sciences of Philada., PN 1852.] : 
PAGURIDEA, continued, and Subtribe MEGALOPIDEA. 
I. PAcUuniDz4, continued. 
Among the species of the genus Pagurus, as restricted in my former paper on 
the Paguridea, there are still three groups of distinct character; one, having no 
trace of a beak, the front being truncate, and also having the fingers opening in a 
vertical plane, the hands being usually compressed, with commonly the left the 
larger; a second, having a short beak or triangular point in front, and the fingers 
opening like the "preceding, with the hands subequal ; ; a third, having a beak like 
the last, but the fingers opening in a Aor?zoztal plane, the hands being subequal 
and more or less depressed, and never compressed. The first group has Pagurus 
punctulatus for its type; the second, P. amiewlus; the third, P. clibanarius. 
They form three genera with the following characters :— 
1. PacuRvs.—Frons non rostratus, truncatus. Manus anticae saepius com- 
presse, interdum subaquz, saepius sinistrà majore, digitis apice corneis, in plano 
verticali claudentibus. 
2. AwrcuLUs, D.—fFrons triangulaté rostratus. Manus antice subequz, 
digitis apice corneis, in plano verticali claudentibus. 
3. CrreawaRiUS, D.—Frons triangulaté rostratus. Manus antieze subzequse; 
plus minusve depressz, digitis apice corneis, in plano horizontali claudentibus. 
Species P. equalis, zebra, humilis, globosi-manus, Clibanario pertinent. 
The species Pagurus aniculus may hereafter be named Azieulus typicus ; the 
P. clibanarius, CZibezarius vulgaris; and the P. Bernhardus, Berzhardus streb- - 
lomyz. 'The name Bernhardus pubescens, (see preceding volume, p. 270,) we 
propose to change to B. scabriculus, as Króyer* has described a Pagurus. pa- 
bescens, which is probably a Bernhardus. " 
Descriptiones Pagurideorum adhuc inedite. ( 
BERNHARDUS OBESI-CARPUS.— Frons medio prominulus, obtusus. Regio cara- 
pacis antica paulo transversa, nudiuscula. Oculi crassi et perbreves, aciculo 
longiores, squamá basali ovatà, subacutà, integrá. Antennae externe nude, 
basi multo longiore quam oculus, acieulo crasso, brevi, apicem articuli 3tii. 
attingente. Pedes toti fere nudi et granulosi, non armati; antici inzgequi; manu 
majore oblongà, convexà, symmetricà, granulis nitidis partim seriatis, carpo 
multo crassiore, parce latiore. Pares 2di et 3tii crassiusculi, articulo 3tio supra 
* Tidsk. i1, 251, 252. 
