PHYLLOPODES A^'OSTRACÉS 400 



Patria. Auslralia, Oueensland, Rockhamplon, Slalio Calll(\ 

 e limo educit IJlustr. D. Prof. G. 0. Sar.s ; Port Darwin, Mons 

 Slowbridge. Specimina non examinavi. 



Speciei huiiis adluic solum feminae siint cognitae, et se ipsa 

 hucusque incola e génère Streptocephalus unica Australiac. 



Sp. Streptocephalus floridanus Packard. 

 Streptocephalus floridanus Packard, 88, p. 53; 89, p. 350. 



(( ïhe two basai filaments are as in S. texanus ; of the 

 forceps at the end of the claspers, the filaments are much 

 shorter and smaller than in S. texanus, so much so that there 

 is no ne ed of confounding the Iwospecies, and, besides, in the 

 Floridian species the processes are less broad and flat, and 

 the inner of the two blades of the forceps ha\e but one instead 

 oftwoteeth. It approaches S. texanus in the robustness of 

 the body, in the form and size of the caudal appendages, se hich 

 equal, in length, the three last abdominal segments. It seems 

 to approach S. similis Baird, which inhabits St. Domingo, but 

 that species is not described with sufficient exactuess to enable 

 us to compare it properly, ant indeed without good spécimens 

 for comparaison it is difficult to say whether this species is 

 ditîerent or not from *S'. Sealii Ryder. 



Total length of maie, 10 mm. ; length of 2-d antennae when 

 stretched out, 5-6 mm. ; length of caudal appendage, 2 mm. ; 

 total length of female, 10 mm. 



A pair cf and 9 found in the Saint John's River, Florida, 

 May 23, 1879, by Alex P. Pries; reccived from Dr. Cari 

 F. Gis.sler. It appears to differ from S. similis in the shorter 

 filiform appendage of 3-d joint of 2-d antennae, which is also 

 very much shorter than in S. texanus. 



D'après la description ci-dessus nous pouvons grouper les 

 caractères spéciaux du Streptocephalus floridanus comme il 

 suit : les branches des serres des antennes inférieures du mâle 

 sont droites et n'ont qu'une saillie à la base de la branche 

 interne ; les cercopodes ont la forme d'un poignard avec des 

 poils sur les deux côtés et elles ont la longueur des 3 derniers 

 segments de l'abdomen. La définition précise des caractères de 



