I 



24 PROCEEDINGS OF THE ACADEMY OF 



South Carolina and Georgia, Dr. Zirnmermann. Very much smaller than 

 the other species. I have not considered it necessary to give detailed descrip- 

 tions of the species of this genus, as they only differ from each other by the 

 characters above mentioned. 



Toxidium Lee. 



Antennse capillares, elongatse, articulis 7-11 crassioribus, Svo contiguis 

 angustiore ; thorax basi lobatus, scutellum obtegens. Coxse intermedia? dis- 

 tantes, posticse parum distantes. Pedes tenues, tibiis haud spinosis, tarsis 

 posterioribus tibiis haud brevioribus, articulo lmo longiore. Corpus elonga- 

 tum compressum arcuatum ; mesothoracis pleurse quadratse, linea obliqua 

 haud insculptse. 



1. T. gamma roides, elongato-ovale, valde convexum, nigrum nitidum, 

 thorace latitudine sublongiore, lateribus obliquis, elytris obsolete parce punc- 

 tulatis, stria suturali tenui antice obliterata, margine apicali obscure testaceo, 

 ano, antennis pedibusque saturate testaceis. Long. *08. 



Southern and Western States, not rare. A singular looking insect, having 

 much the outline of the small Crustacea known as Gammarus. 



Description of a New Species of CEPHALOPOD, from the Eocene of Texas. 



BY WM. M. GABB. 



Sepia (Belosepia) ungula . Shell laterally compressed, especially poste- 

 riorly ; beak robust, acute, arcuate, and with a very faint ridge on the dorsal 

 surface ; ventral plate smaller in proportion than in tbe other species of this 

 subgenus, slightly undulate and radiate, edge smooth and sharp; dorsal cal- 

 lus straight, deeply rugose, marked by about three irregular rugse, and co- 

 vered on the face and sides with pits or cavities, which extend on the sides 

 almost to the base of the ventral plate, becoming gradually fainter until they 

 disappear; cavity shallow, ventral edge sharp, interior marked by numerous 

 compound concentric ribs crossed by very faint longitudinal lines. 



Length lj in.; length of rostrum f in. ; width of ventral plate J in., just above 

 the base of the cavity. 



Locality and position, Wheelock, Texas ; from a deposit containing many 

 species found at Claiborne, Ala. 



This species resembles more nearly Sepia Cuvieri Desk., of the Paris 

 basin than any other, but it can readily be distinguished from it by the dorsal 

 callosity, which, in our species, is not so prominent, and is comparatively sharp, 

 especially towards the extremity nearest the rostrum. The roughening of the 

 surface of the same portion is, in the Paris species, transverse, while in ours it 

 is longitudinal. The ventral plate is one-third smaller in. the present species than 

 in S. Cuvieri. 



The type of this species belongs to the Smithsonian Institution. 



A letter from Dr. W. S. W. Ruschenberger, dated Philadelphia, 

 July 26th, resigning his position on the Committees of Proceedings, 

 Publication and Concbology, on account of prolonged absence on of- 

 ficial duty, was read, aud on motion the resignation was accepted. 



[July, 



