[Prom the Proceedings of the Academy of Naturai Sciences of Philadelphia, January, 1860.] 



Frodromus descriptionis animalium evertebratorum,lquae in Expeditione ad 

 Oceanum Pacificum Septentrionalem, a RepuWicaFederatamissa, Cadwaladaro 

 Einggold et Johanne Rodgers Ducibus, observavit et descripsit 



W. STIMPSON. 

 Pars VIII. CRUSTACEA MACRURA, 



Thalassinidea. 



359. Gebia subspinosa, nov. sp. G, majori affinis. Foeminae manus pe- 

 dum primi paris intus spina una prope pollicem, * et duabus ad basin dac-„ 

 tyli armata ; pollex intus bidentatus, dentibus minutis ; dactylus superne ca- 

 rinatus, carina crenulata. Pedes primi, secundi, tertiique paris prope basin 

 spina acuta armati. 



Hab. — In sinu " Simon's Bay" ad Promont. Bonae Spei ; in fundo arenoso, 

 prof. 8 org. 



360. Gebia caeinicauda, nov. sp. G. majori affinis. Carapax antice angus- 

 tior, dentibus minus prominentibus, fronte spinulis erectis sat validis pectina- 

 ta. Pedum primi paris manus infra spina versus pollicem instructa ; pollex in- 

 tus subtiliter denticulatus ; dactylus superne carinatus, carina laevi. Pedum 

 tertii paris foeminae coxa spina parvula super aperturam genitalem armata. 

 Sulci laterales segmentorum abdominalium validi, prsesertim segmenti penul- 

 timi. Abdominis segmentum ultimum carina transversa acuta prope basin 

 omatum ; lamellae laterales valide carinatae, marginibus terminalibus spin- 

 ulis crenulatae. Long. 1.77 ; carapacis long. 0.56 ; carap. regionis anterioris 

 lat. 0.19 ; regionis post. lat, 0.29 poll. 



Hab. — In portu " Hong Kong ;" sublittoralis in locis limoso-sabulosis. 



* PoUex nobis est digitus immobilis. 



