GULF OF MEXICO 



415 



*22. l.ninncreis cidveri (Webster), 1879. 



Reported as Leytonercis notn Treadwell, 1(141, pp. 1, .3, 

 tig.s. 7-10, from Otfat.s Bayou, Galveston, Texas, presuma- 

 bly in muddy sand, and from southern Horida by Hart- 

 man, li)45, p. 21. The speeies is more widely known from 

 North Carolina south to Brazil and the \\'est Indies, in 

 muddy sand. The synonymy is newly indicated h?rein. 

 23. [yt/caslop.sis tecoliillensis Rioja, 1940. 



By Uioja, 1946, pp. 211-212, pi. I, figs. 7-12, from 

 Tecolutia, Mexico, from mangrove swamps. 

 *24. Plati/rifreis dumerilii (Audouin and Edwards), 1833. 



Described as Uncinereis Irimaculosa Treadwell, 1940, 

 p. 3, figs. 4-9, from Galveston, Texas, on a floating log. 

 It is known elsewhere from circummundane littoral regions. 

 The synonymy is here newly indicated. 



25. Glycera americana Leidy, 1855. 



By AVarren, 1942, pp. 42-43. from Grand Isle, Louisiana, 

 and by Rioja, 1946, p. 194, from Tecolutia, Mexico, in 

 tidal tributaries, in mixed sand. More widely recorded 

 from east and west coasts of the Ainericas, and from South 

 Pacific regions. 



Family ONUPHIDAE 



26. Diopalra cuprea (Bosc), 1802. 



By Gary and Spaulding, 1909, p. 9, from Louisiana, 

 reporting tubes abundant on sandy shoals and sand flats, 

 also by Warren, 1942, p. 44, from Grand Isle, Louisiana. 

 The species is elsewhere known from tropical and sub- 

 tropical eastern North and South America. 



27. Eunice schemacephala Schmarda, 1861. 



As Leodice fucata Warren, 1942, p. 45, from Grand Isle, 

 Louisiana. This is the West Indian palolo worm, and 

 more widely known in the Caribbean Sea. 



28. Ufarpht/tta sangiiinea (Montagu), 1815. 



As Marpht/sa aransensis Treadwell, 1939, p. 5, figs. 

 16-17, from Aransas Pass, Texas, considered possibly the 

 same as M. sanguinea in Hartman, 1944, p. 128. Occurs 

 in hard packed mud or clay, in circummundane, warm- 

 water regions. 



29. Patola siciliensis (Grube), 1840. 



Reported by Rioja, 1946, p. 194, from Veracruz, Mexico. 

 Circummundane. 



30. Lysidice ninetta Audouin and Edwards, 1833. 

 Reported by Rioja, 1946, p. 194, from Veracruz, 



Mexico, from among algae growing on tubes of Sabella- 

 slarle. Circummundane. 



Family LUMBRINERIDAE 



31. Lumbrineris bassi Hartman, 1944. 



By Hartman, 1944, pp. 150-151, pi. 10, figs. 217-223, 

 from Lemon Bay, Florida in sandy shoals. Not known 

 elsewhere. 



32. Lumbrineris parvapedata (Treadwell), 1901. 



First described as Lutnbriconereis parva-pedala Tread- 

 well, 1901. p. 198, figs. 38-40, from Ensenada Honda, 

 Culebra; later as Lumbrinereis elongata Treadwell, 1931, 

 p. 3, fig. 2, from Grand Isle, Louisiana, and so reported 

 by Warren, 1942, p. 45, from the same place; in sand. 

 Not known elsewhere. 



33. Luudninerix inflnla Moore, 1911. 



By Hartman, 1944, p. 161, from the Gulf of Mexico, 

 the Gulf of California, and the northeast Pacific Ocean; 

 in sand. 



Family LYSARETIDAE 



34. Lysarele branilientia Kinberg, 1865. 



.\s Ocnone brevimniitlata Treadwell, 1931, pp. 1-3, figs. 

 4-9, from "Mexico," and tentatively relegated to Lysarele 

 brnsiliensis in Hartman, 1944, p. 185. Elsewhere known 

 from the West Indies and eastern South America. 



Family SPIONIDAE 



35. Nerine agilis Verrill, 1873. 



As Nerine minula Treadwell, 1939, p. 5, figs. 18-20, 

 from Port Aransas, Texas, in sand. The species is more 

 widely known from eastern United States, and by Fauvel, 

 1950, p. 371, from French West Africa. 



36. Folydora websteri Hartman, 1943. 



As Polydora ciliata Kavanagh, 1940, pp. 31-34, and 

 Kavanagh, 1941, p. 354, from Louisiana; also as P. 

 websle'-i by S. Hopkins, 1947, bibliography, pp. 12-14, 

 and Baughman, 1947, pp. 713-715. Penetrates com- 

 mercial oyster shells and causes mud blisters. More 

 widely known from eastern United States. The genus 

 Polydora is reviewed by Stenzel and Turner, 1944, based 

 on fossil records in eastern Texas. 



Family CHAETOPTERIDAE 



37. Chaetoplerus I'ariopedatus (Renier), 1847. 



As C. pergamentaceus by Gary and Spaulding, 1909, 

 p. 9, from Louisiana, on sand flats. Widely known from 

 cosmopolitan areas in littoral zones. 



Family ARENICOLIDAE 



38. Arenicola cristata Stimpson, 1856. 



By Warren, 1942, pp. 41-42, from Grand Isle, Louisiana, 

 in sand. More extensively known from both sides of the 

 Americas. 



Family OPHELIIDAE 



39. Polyophihalmus pictus (Dujardin), 1839. 



By Rioja, 1946, p. 195, from Veracruz, Mexico, from 

 encrusting algae. Considered cosmopolitan in distribution. 



Family CAPITELLIDAE 



*40. Capitellides teres Treadwell, 1939. 



By Treadwell, 1939, p. 6, figs. 21-24, from Port Aransas, 

 Texas. The single type specimen, examined by me, re- 

 sembles a Capitella, but there are large genital hooks on 

 the ninth setiger and large ova in the eleventh and twelfth 

 segments, as in Capitellides. It departs from both these 

 genera, however, in having setae, not hooks, in 8 anterior 

 segments and in other respects. The species does not seem 

 to fit any capitellid category (see Hartman, 1947, p. 400, 

 for chart). 



Family MALDANIDAE 



41. Branchioasychis americana Hartman, 1945. 



By Hartman, 1945, pp. 40-42, pi. 9, from Lemon Bay, 

 southwestern Florida and more widely known from North 

 Carolina. In fine sandy mud. 



