A NEW SPECIES OF 



THE NEMIC GENUS SYRINGOLAIMUS 



With a note on the fossorium of nemas 

 CONTRIBUTIONS TO A SCIENCE OF NEMATOLOGY XIX 



BY N. A. COBB 



The writer's collection of Syringolaims shows them to live on tem- 

 perate and tropical sea coasts in many parts of the world. Among 

 other places, his Syringolaims (1888-1927) represent the East Indies 

 (Larat), Polynesia (Noumea, Hawaii), the Atlantic and Pacific Coasts 

 of Panama, the Atlantic Coast of the United States, and the English 

 Channel. The manuscript record of these collections contains full 

 descriptions of a number of new but unpublished closely related species. 



Our knowledge of this genus has increased but little since de Man 

 described the type species, his S. striatocaudatus. The present publi- 

 cation adds information concerning (1) the labial papillae, (2) the 

 amphids, (3) the phasmids (?), (4) the fossorium, (5) the intestine, 

 (6) the male gone, (7) the food habits, and (8) the geographic distribu- 

 tion. 



Syringolaimus smarigdus, n.sp. |;J *%$ *%% 



The transparent, colorless cuticle is traversed by plain transverse striae 

 very difficult, or almost impossible, to resolve, which are not altered on the 

 lateral fields. Faint traces of wings occur, beginning near the head and end- 

 ing on the tail. Longitudinal "striae," due to the attachment of the muscula- 

 ture, are visible in nearly all regions of the body. No series of pores have 

 been seen in the cuticle. Of the highly mobile lips there probably are three, 

 but they are no more than sub-distinct, and are small and somewhat rounded. 

 The pharynx is armed in front with three duplex (somewhat lobster-claw- 

 like), in profile somewhat inverted-comma-shaped, subacute odontia (Fig. 

 1, mnd) having an outward throw of about 180, a movement seen on more 



Waverly Press, Baltimore, Md., June 9, 1928. From Jour. Wash. Acad. Sc., May 4, 1928. Repaged without 

 material alterations. 



