* 
28 PROCEEDINGS OF THE AMERICAN ACADEMY 
thorax curtus, obesus, 6-articulatus, capite discreto, segmento postico 
perbrevi, et posticé vix acuto. Ántennse antieze corpore paulo longiores, 
lat& divaricatze, fere rectze, setis raris sublongis, apicalibus articulo plus 
duplo longioribus, subapicalibus brevioribus.  Antennz posticze ramos 
valde inzequz, setis ramorum et palporum sequentium fere corporis lon- 
gitudine, instar plumarum. Styli caudales parce oblongi. 
Long. 45. — Hab. in mari Atlantico, lat. bor. 5^, long. occ. 91*. 
4. PoNTELLA TURGIDA. —— Frons rotundata.  Cephalothorax crassus, 
obesus, 5— 6 articulatus, capite discretus, posticé obtusus. Oculi su- 
periores approximati. Antenn:e antice corporis longitudine, fermé 21- 
articulatzee, 60? — 90? divaricatz et prope medium obsoleté reflex ; se- 
tis brevibus, penultimà posticà longiore quam apicales aut aliz subapi- 
cales.  Ántenne posticcze ramos valde inzequze, setis longis. Styli caü- 
dales oblongi. — Maris antenna antica dextra 10 — 12-articulata, articulo 
submediano laté subovato et apice acuto, articulis tribus sequentibus 
valde elongatis, ultimo triplice. 
Long. Jj". — Hab. in mari Atlantico, lat. bor. 81? — 0?, long. occ. 
23^ — 18^; lect. diebus 15, 22, 23, 26 Oct., 1838. Lat. aust. 1? 242^, 
long. occ. 171? — 212^ ; lect. diebus 5, 6, 7 Nov., 1838. Lat. aust. 4? 
30', long. occ. 25? ; lect. die 19 Maii, 1842. Lat. bor. 0? 15/, long. 
occ. 31^; lect. die 17 Maii, 1842. In mari Pacifico prope insulas 
* Kingsmill?; lect. diebus 13, 28 Ap., 1841. In syrtis ** Lagul- 
has"; lect. die 8 Ap., 1842. 
b. PoNTELLA cURTA. —— Frons rotundata. ^ Cephalothorax curtus, 
crassiusculus, 5-articulatus, capite discreto, angulis. posticis brevissimé 
acutis. Antenne antice corpore breviores, recte, 105? divaricatz, 
setis brevibus, apicali anticà longiore. Antennz posticze ramos valde 
inequse, minore plus dimidio breviore. Styli caudales oblongi, non 
divaricati. 
Long. Jj". — Hab. prope insulam ** Mindoro?' et in freto ** Sun- 
da"; lect. diebus 24 Jan. et 4 Mar., 1842. In syrtis * Lagulhas? ;. 
lect. die 8 Ap., 1842. 
^( 76. PoyrELLA cowTRACTA. — Frons rotundata. Cephalothorax 6 —7- 
articulatus, capite discreto, angulis posticis brevissimé acutis, segmento 
postico fere obsoleto. Antenn:z anticze cephalothorace non longiores, 
100? — 110? divaricatz, rectze, fermé 1'7-articulatee, setis brevibus, api- 
cali anticá longiore. Rami antennarum posticarum valde inzqui. Styli 
caudales elongati. | Abdomen 2-articulatum.] 
Long. 455". — Hab. in mari Pacifico, lat. aust. 182?, long. occ. 194? 
