PROCEEDINGS OF THE NATIONAL MUSEUM. 



55 



BATRACHONOTUS NICHOLSI, new species. 



Female: Eegious of carapace deeply marked, elevated portious with 

 coarse tubercles uuequal in size; a tubercle on the summit of each 

 branchial region is larger than all others, resembling a short, stout 

 spine. The depressions of the carapace are smooth. The short rostral 

 teeth are slightly longer than in the preceding species and the inter- 

 space eciuals the tooth in width. Postorbital tooth shorter than the 

 ocular peduncle, as in the genus. Hepatic region advanced, subrect- 

 augular, the anterior margin almost at right angles to the median line. 

 On the margin there is a tubercle at the hepatic angle, one on the 

 pterygostomian region ami two or three on the branchial region. Ridges 

 of the basal antenna! segment tuberculous, the terminal spine blunt, 

 curved, and more produced than in other species, in this respect ap- 

 proaching the genus Uuprof/natJia. Inferior surface tuberculous. Che- 

 lil)eds tuberculous, the tubercles becoming spiniform on the inner mar- 

 gin of the merus. The first ambulatory leg (the only one attached) is 

 a little more than one and a half times the length of the carapace; the 

 dactylus is long, nearly equaling the propodus. 



Measurements. — Length, 5.3 mm.; width, -4.4. 



This species is represented by two snuill dried specimens, females, 

 from the Gulf of California, lat. 29c> 30' N., long. 112o 40' W., 45 fathoms, 

 collected by Lieut. Commander H. E. Nichols, U. S. Navy. (18107). 



EUPROGNATHA RASTELLIFERA, Stimpson. 

 Euprognathii rastdllfcra, Stimpson, Bull. Mus. Comp. Zool., ii, p. 123, 1870. — A. Milnk- 

 Edwards, op. cit., p. 183, pi, xxxiii, fig. 2, 1879.— Saiith, Proe. U. K. Nat. Mms., 

 Ill, p. 415, 1881, and vi, p. 9, 1883; Rept. U. S. Fish Comr. for 1882, p. 347, pi. i, 

 figs. 3, .3a, 1884; op. cit. for 188."), p. G21, 1887. 



Collected by the Albatross at the following stations not before 

 recorded : 



LoiiH-W. 



2§ miles NW. of Havana 

 Lislit. > 



37° 03' 20'' 

 37 07 00 

 37 08 30 

 37 10 15 



74° 31' 40" 

 74 34 30 • 

 74 33 30 

 74 32 00 



Bottom. 



25 20 30 79 58 00 



104 

 04 

 85 



143 



47.7 



'si's" 



Materials. 



Co 



blc. S. M. G 



fne. sy. S P 



crs. eV. S. bk. Sp. brk. Sh 

 gu. M. I'ne. S 



gy-!^ 



ElTPKOdNATHA RASTELLIFERA ,SPIN<)SA, new subspecies. 

 (See S.MiTH, Proc. U. S. Nat. Mus., vi, p. 11, 1883.) 



Southern specimens of U. rastellifera are characterized by longer and 

 more slender spines, noticeably the orbital spines, by the sharper and 

 more prominent tubercles of the carapace, and by the unequal slender 

 spines of the merus and carpus of the chelipeds. The spine on the eye is 

 larger and more prominent than in typical E. rastellifera, and the 



