— RTA Scientific Intelligence. 
LaMBRUS RHOMBICUS. —Carapax paulo Wig cakes medium latior, 
bu trigona, marginibus salientibus ineeque dentatis, brachio margine 
anticum minuté eroso et superficiem minuté spinuloso. Pedes 8 re - 
tici granillimts breviter pubescentes.—Long. 10”. 
chipelago Vitiensi, mari Pacifico. 
CERratoca oman SPECIOSUS.—Carapax hexagonus, fere equilate- 
ralis, depressus, regionibus partim conspicuis, fronte lato, rec té trans: 
verso, subtiliter crenulato, medium emarginato, utrinque juxta oculum 
valde saliente. Manus digitusque mobilis spinulosi; carpus parce spin- 
ewe ; digiti contigui. Pedes 8 postici breviter pubescentes, inermes. 
ne: 
Hab in Archipelago Vitiensi, mari Pacifico. 
2. Zoological “ge es; by Josern Lerpy, M.D. bend 
1.) On American Annelida abranchiata, (Jour. Acad. Nat. Sci., ii, 
43.)—This memoir es anes descriptions of the following species from 
the vicinity of Philadelphia. 
Nais rane Enchytreeus vermicularis, Henle. 
Nais gracilis Enchytreeus socialis. 
Prat “engines: Ehrend. Lumbriculus limosus. 
Strephuris Setar — Leucophrys clavata. | 
Aeolosoma venu j 
The new genus Siephariy is described as follows :—Podal s spines 
meransing with seta, in two rows. Upper lip moderately projecting. 
Girdle well marked. Nester, of Ah peti not over seventy. No 
muscular stomach. Blood bright 
The paper is gp we hae =a a FGiceaaiio plate illustrating with 
details ite species descri 
(2.) On two New tear of Fossil eenalié (Proc. Acad. Nat. Sci., 
Philad., v, 90.)— ow git are named Eucrotaphus Jacksoni and Ar- 
cheotherium Mortoni ; the ey are from the Ha sol Fort Laramie. 
(3.) Contributions to Helminthology. (Proc. Acad. Nat. Sci. Philad., 
v, 96. qe 4 pecies here described are— 
Ligula T Echinorhynchus ovatus 
= abba Didelphidis Virginiane, Echinorhynchus tortuosus.— 
Pentastomum Euryzonum, agit Pa aabtebie Pici collaris. 
entastomuam pro a deu 
(4.) Notes on the dev renee oF the Gordius aquaticus, (Proc. Acad. 
Nat. Sci., v, 98, Oct 
(5.) Two new species of Infusorial pies (Ib., p. 100. Net! 
peeeiee are Wyctotherus ovalis and Bodo Julidi 
oe ) exhetag of some Nematoid eebsiba afiiltg Insects, . at 
_ p. 100.)—-Specie 
sb shoot a gra Thelastoma robustum. 
Thelastoma sas ithe: Oxyuris socialis; 
Thelastoma labiatum. Hystrignathus rigidus. 
_(7.) Descriptions of three Filaria, (Ib., A Jay 1 See eed | 
Hominis oris, F. canis cordis, F. Boe cons 
