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192 Scientific Intelligence. 
The Pagurus Bernhardus is the type of one group, the species of which 
live mostly in the colder oceans. "This genus is called BEgNRARDUS, 
and the common species naturally bears Leach's specific name, Bern- 
hardus streblonyz. 'TI he 2d genus is called DiocENEs ; Pagurus miles 
is the type. The 3d, PacunrsTES, having for its type, Pagurus gona- 
grus or P. pilosus. 'The preceding have the fingers acuminated, while 
in the following genera they are spoon-excavate at tip. '"l'he 4th genus 
is PAcuRus, a large group including P. punctulatus, having corneous 
tips to the fingers, and no beak ; the 5th, CareiNvus, with P. tibicen as 
the type, with calcareous tips and a short beak ; [6th, AwrcuLvs, equal —.- 
handed and beaked, and with corneous tips to the fingers like the fol- 
lowing, but having a vertical movement in the fingers, as in Pag. anicu- —— | 
lus; "Ih, CLiBANARIUS, equal-handed and having a lateral or horizon- | 
tal movement in the fingers, as in Pagurus clibanarius.* "The last two 
genera are here for the first time published, not being included in the 
paper in the Academy's Proceedings.—»p.] 
The following is a synopsis of the genera : 
FaAw.lI. PAGURID/E. 
Antennz interne mediocres, articulo 1mo brevissimo. Maxillipedis 
externi palpus flagello multiarticulato instructus.— Species aquaticse 
vel littorinz. 
1. PAGURINJE.—Abdomen asymmetricum. 
1. Digiti acuminati. Flagellum antennarum internarum sepe plus minusve pilosum. 
Gen. 1. PacunisrES, (D.)—Pedes 4ti non subcheliformes, tarso 
terminali. | 2-4 appendicibus pone pedum posticorum bases 
instructus. Basis antennarum internarum paulo longior, apice 
articuli 2di extremitatem oculorum fere attingente. 
Gen. 2. DrocENEs, ( D.)—Pedes 4ti subcheliformes. — Pedes lmi 
ingqui, sinister major. Annulum ophthalmicum rostriferum. 
Appendicibus pone pedum posticorum bases carens. 
Gen. 3. BEenNHAnDUS, (D.)—Pedes 4ti subcheliformes. ^ Pedes 
lmi interdum subzquales, sepius dexter major. Annulum oph- 
thalmicum non rostriferum. | Appendicibus articulatis pone pe- 
dum posticorum bases carens. 
2. Digiti instar cochlearis excavati. JFlagellum antennarum internarum nwudum vel 
muudiusculum. 
Gen. 4. PAcuRus.—Manus antice; sepius compresse, interdum 
subzquse, seepius sinistrá majore; digitis apice corneis, in plano - 
verticali elaudentibus. Frons medio non rostratus sed truncatus. 
Gen. 5. Carciwvus, D.—Manus antiez compresse, inzquse, sin- 
istrá majore, digitis apice calcareis, in plano verticali clauden- 
tibus. Frons medio breviter rostratus. 
Gen. 6. Aurcurvs, D.—Manus antice: subzequsz, digitis apice cor- 
neis, in plano verticali claudentibus. Frons medio breviter 
rostratus. 
* The Pagurus aniculus may hereafter be named Aniculus typicus and the P. cli- 
banarius, Clibanarius vulgaris.—D. 
