NO. 5 HARTMAN: POLYCHAETOUS ANNELIDS 509 



sal or convex side of the anal plaque is smoothly rounded. The anal 

 aperture is dorsal, at the anterior margin of the plaque. 



L. americana occupies sandy mud flats along low intertidal zones of 

 the states bordering the north of the Gulf of Mexico. Another individual 

 was dredged from a few fathoms off Guatemala, Pacific side. Tubes are 

 probably not constructed and there is no attached detritus on any of the 

 collections that would suggest tube construction. 



L. americana is the third known species of a small genus. The first, 

 L. aberrans Monro ( 1936) remains unknown except for its original dis- 

 covery from Angola, West Africa: the second, L. fauveli Berkeley 

 (1941) is known from a single record off southern California. Each of 

 these is well characterized. L. fauveli lacks notopodia on the first 6 

 setigerous segments and is thought to lack an anal plaque. L. aberrans 

 has uniramous parapodia on the first 2 setigerous segments which resemble 

 notopodia and segments 3 to 5 or 6 have neuropodia that resemble those 

 farther back; furthermore, there are cirriform branchiae present from the 

 fifty-fourth neuropodium to the posterior end. There is an anal plaque 

 with 3 papillae but the median one is inserted at the posterior edge. 

 L. americana is at once separable from each of the other 2 for having 

 biramous parapodia already from the second setigerous segment. 



The holotype and paratypes were collected by Mr. M. Woodbridge 

 Williams; another individual was taken by Dr. Elinor H. Behre, Pro- 

 fessor of Zoology, Louisiana State University. 



Holotype. — AHF no. 130; paratypes in the Allan Hancock 

 Foundation. 



Type locality. — Biloxi, Mississippi in sandy flats at low tide. 



Distribution. — Intertidal areas bordering the north of the Gulf of 

 Mexico; off San Jose Light, Guatemala in 12-13 fms. 



Genus TALEHSAPIA Fauvel, 1932 

 Type T. annandalei Fauvel 

 This genus is known for a single species, T. annandalei Fauvel ( 1932, 

 p. 251 ) from the Gulf of Siam, perhaps from brackish water. The body 

 is filiform or cylindrical and resembles that of a lumbrinerid. The 

 prostomium is conical and lacks palpi, eyes or other appendages. The 

 first 5 segments are slightly inflated, much as in Loandalia. The proboscis 

 is soft, cylindrical and transparent, without any papillae but is believed to 

 have 2 embedded, horny jaws on each side. Parapodia are much like 



