ACADEMY OF SCIENCES. 13 



27. Oregonia hirta. Dami. U. S. Ex. Exp., I, 107, pi. Ill, f. 3. Stimp- 



son. Crust, and Ecbi. Pac. S. N. A. 



Both the Oregonire are found in deep water. Locality, Puget Sound. I 

 have not seen either of these species. 



28. Leptopodia debiUs. S. I. Smith. Rep. Peabody Acad. Sci., 18G9. 



Panama, Pearl Islands. 



A single specimen of this species was found in Mr. Fisher's collection, from 

 the Gulf Coast of Lower California. 



29. Tnachoides (Microrhynckns) IlemphiJlii. Lockington. Proc. Cal. Acad. 



Sci., February 7, 1876. 



I have been in some doubt whether to refer this species to Inacholdes or 

 Microrhynchiis, but as the eyes are toleral ly elongated and do not appear to be 

 retractile within the small orbits, I prefer the former. On the other hand, it 

 differs from both genera in the absence of a post-orbital spine, unless a single 

 spine on the antero-lateral margin, situated almost the length of the rostrum 

 behind the eyes, can have a right to that name. The rostrum is one-fourth - 

 the length-of the posterior portion of the carapax. The want of a post-orbital ^ ^^^ '"' ''^ ^ 

 spine scarcely warrants the establishment of a new genus, but the definition'^'*-^' " '^■'• 

 of the genus In^rkoides must, to admit it, be altered slightly, thus ^" (i^tc ,, . . 



Inachoides. Edwds and Lucas. Carapax valde gibbosus rosiro hyightscuh/^^'^ P^^f-'^ ^t^' 

 acuta, spina post-orbitali parva aut nulla. Pedes 8, postici sat longi, gradUimif''^'^^'"", 

 Articulus antennarum externarum Imns angustus. / '^ 



The words aut ntdia admit the present species. Localities— San Die^o, San 



Luis Obispo, both in Upper CaHfornia; La Paz, where it has been dredged 



from a bottom of sand and mud; San Jose Island; Amortiguado Bay; Port I 



Eseondido; Mulege Bay- all in the Gulf of California. The largest specimen I 



I have seen, a male, exceeds in size the type in the possession of the Acad- I 



emy. The dimensions are as follows: |, 



M. M. '^ 



Length of carapax, including rostrum Si ? 



Greatest width of ditto 23 



Length of first pair. . 40 



Length of second i^air 70 



One of the largest females measures 15 m. m. in length and 8 in width. The 

 carapax of this species is free from the parasitic growth, often so abundant on 

 maioid crabs. 



No. 2. Male, San Diego, 7 fms. Hy. Hemphill. 



30. Inachoides brevirostrum. nov. sp. 



Carapax pyriform, the regions in the central line of the body more elevated 

 than the lateral regions. Rostrum short, simple, eonsisting-of -ihe-spinous /W'-"^* a/tu' 

 termi^3atTtrn-of-the--s6f>t^Tm.dividingJJifijQasj£tt£&jQf-tlie inner anteaBa^. fip- '^'^-' ''»^'*^ "V"»^ "- 

 p"v;iti^ thr nntrvinr r-rtrnniity nf nnnh f n",arttn nn a rufr too t h, no th i t th e i u.: 



