1853.] 365 



less than half the length of the wings, which are pale, with the apex slightly 

 fuliginous, and extending I line beyond the abdomen. Anterior feet flavous, 

 tibial palm hirsute, with three terminal spines, internal angle with a slender 

 tarsus (apparently bi-articulate) armed with two slender curved ungues. Me- 

 dial feet and posterior femora variegated ; posterior tibia? with lamellar appen- 

 dages as in X. apicalis. Abdomen flavous beneath and at the lateral margin, 

 sides and ap'^x brown. 5 lines long to the end of the wings. 



Fort Gates, Western Texas, Lt. H. Haldeman. 



Resembles X. apicalis Say, (which occurs on the Susquehanna) in general 

 appearance, but it is smaller, and the prothorax is much less inflated. 



Termes nigriceps Haiti. Body, feet, trophi and antennae flavous. Head 

 glossy black, sparsely hairy, globose pyriform, projecting anteriorly and ending 

 in a long horn; antenna; l2-articu!ate ; feet slender and hairy. Length 1^ line. 



Soldier? with the head larger, sub-globular, unarmed, pale polished brows, 

 front and medial line impressed; antennae 14-articulate. Length li line. 



Western Mexico. 



This small species constructs nests apparently of cow's dung, which are 

 attached to the trunks of trees. Dr. Le Conte has seen this or an allied species 

 in Central America. The specimens with the larger head are presumed to be 

 the soldiers. 



EuMENEs PENSiLVANiCA Hald. Black, with dilated impressed punctures. 

 Hypostoma transversely truncate, with a marjzinal band of white; a white point 

 at the posterior base of the antennae, basal articulation of the antenn.Te with a 

 narrow line of white. Abdominal peduncle small, with a narrow white band 

 near its apex. Sejjmenls of the abdomen with a very narrow margin of white. 

 Wings pale fuliginous. Length 5^ lines. 



Pennsylvania. 



The smallest of our species known to me, and having the mesonotum more 

 coarsely punctate, and the white of the face forming a transverse band ante- 

 riorly. 



The Coraiiiittee on Mr. Girard's descriptions of new Neraerteans and 

 Planarians, reported in favor of publication. 



Descriptions of netv Nemerteans and Tlnnarians from the coast of the Carolinas. 



By Charles Girard. 



The sppcies here described are all marine, and were mostly collected by my 

 friend Wm. Stimpson, on the coast of South Carolina. Aware that I was en- 

 gaged in researches concernins: the natural hi tory of these animals, he very 

 kindly placed thern in my hands for description. 



The number of species thus added to the American fauna amounts to nine, 

 four of which are new to science and two new to America. 



Many of the followins descriptions were prepared with the assistance of notes 

 made on the spot by Mr. Stimpson himself, and while the animals were still 

 alive. The coloration and general form are thus more correctly given than if 

 these characters had been derived from the specimens as preserved in alcohol. 



There are two forms to which I would direct the attention of naturalists, as 

 they must have an immediate bearing upon the question of the natural affinities 

 of these families either with annelids or with molluscs. I allude to the genus 

 Imagine amongst Planarians, and to the genus Stimpsonia amongst Nemerteans. 

 The former represents those gastropods which are provided with eyes at the top 

 of their cephalic tentacles, and the latter the nudibranchiated acteons, with an 

 expanded back. 



