4 THE NAUTILUS. 



ited a small rocky gully about three miles north of Waco, in quest of 

 some fossil bones which the latter had discovered there some time 

 previously. Our time was limited and conditions unfavorable, so 

 that we made no attempt to explore the wooded hill on the left-hand 

 side of the gully, but in the few hours we were in the locality I saw 

 indications that led me to believe that a careful search would yield a 

 good harvest of shells. A month later I returned, this time with 

 Prof. W. T. Gooch,and together we devoted several hours to the col- 

 lecting of mollusks. As a result we were enabled to add two species 

 to the McLennan county list, t. e., Omphalina friabilis W. G. B. and 

 Agriolimax agrestis Linn. 



Omphalina was found in small numbers under stones and logs 

 lying along the foot of a rocky bluff, on the level above the gully. 

 Prof. Gooch found the first slug and in the next half-hour we ob- 

 tained at least a dozen more, the largest about 28 mm. in length. 

 They were found under masses of cowdung lying along a path and 

 were associated with various species of Coleoptera and a few examples 

 of Vitrea indentata umbilicata Ckll. In regard to examples sub- 

 mitted to Bryant Walker, that gentleman writes as follows : " I think 

 that the slug is a variety of Agriolimax agrestis. It has the light- 

 colored space around the respiratory foramen and the dark reticula- 

 tions characteristic of that species." 



Other living mollusks found on the hill were Helicina orbiculata 

 tropica, Praticolella berlanderiana, Polygyra roemeri, P. texasiana, 

 P. mooreana, Bulimulus dealbatus liquabilis, Pyramidula alternata, 

 Bifidaria sp. 



As far as I know, Agriolimax agrestis has not previously been re- 

 corded from the State. 



NOTES ON LAND-SHELLS FROM MATAGORDA PENINSULA, TEXAS. 



BY JOHN K. STRKCKER, JR. 



On the 14th of July, 1908, I accompanied a pleasure party from 

 Palacios, Texas, across the bay to Matagorda Peninsula. This 

 peninsula is the long, slender projection of Matagorda county which 

 separates the bay of the same name from the Gulf. We landed on 

 the bay side, and while the balance of the party crossed over to the 



