316 



FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 



27. Euchromadora vulgaris (Bastian, 1865) de Man, 1886. 



Locality: Tobago, Br. W. Indies. Reported by: 

 Allg6n, 1947. Other localities: Atlantic coast of 

 Europe. 



28. Paraeuchromadora tongicaudata Chitwood, 1951. Lo- 



cality: Aransas Bay, Tex. 



29. Actinonema pachydermata Cobb, 1920. Locality: Key 



West, Fla. 



30. Spilophorella paradoxa (de Man, 1888) Filipjev, 1918 



(fig. 63, I). Localities: Tobago, Br. W. Indie.s and 

 Aransas Bay, Tex. Reported by AUg^n, 1947; 

 Chitwood, 1951. Other localities: Atlantic coast of 

 Europe and North America. 



31. Chromadora quadralineoides Chitwood, 1951 (fig. 63, 



H). Locality: Aransas Bay, Tex. 



32. Chromadorella macrolaimoides (Steiner, 1915). Lo- 



cality: Aransas Bay, Tex. Reported by: Chitwood, 

 1951. Other localities: Sumatra. 



33. Chromadora paramacrolaimoides Allg^n, 1947. Lo- 



cality: Tobago, Br. W. Indies. 



34. Chromadorella filiformoides Chitwood, 1951. Lo- 



cality: Cedar Bayou, Tex. 



35. Chromadorita tentabunda (de Man, 1880) Filipjev, 



1930. Locality: Aransas Bay, Tex. Reported by: 

 Chitwood, 1951. Other localities: Atlantic coast 

 of Europe. 



36. Prochromadorella micoletzkyi Chitwood, 1951. Lo- 



cality: Copano Bay, Tex. 



37. Prochromadorella bipapillala Chitwood, 1951. Local- 



ity: Port Bay, Tex. 



38. Spilophora aniillensis AUg^n, 1947. Locality: Tobago, 



Br. W. Indies. 



39. Spilophora mortenseni Allg^n, 1947. Locality: To- 



bago, Br. W. Indies. 



Family MICROLAIMIDAE Stekhoven and de Coninck, 

 1933 



Amphids post-labial, circular to 1-2 spiral; cuticle finely 

 to coarsely punctate; weakly developed labial rugae; 

 stoma cylindroid, surrounded by esophageal tissue, teeth 

 at anterior or mid-stomatal; 6 cephalic papillae and 10 

 setae or 6 papillae and 4 setae; esophageal bulb usually 

 present; papilloid to chromadoriod supplements; guber- 

 naculum not highly developed; reflexed or outstretched 

 ovaries. Marine and fresh water. 



Subfamily Microlaiminae Micoletzky, 1922 



Cuticle weakly punctate ; teeth mid-stomatal ; esophago- 

 intestinal elongate; papilloid preanal supplements, if 

 present; outstretched ovaries. Marine and brackish. 



40. Microlaimus texianus Chitwood, 1951. Locality: 



Aransas Bay, Tex. 



Family CYATHOLAIMIDAE Stekhoven and de 

 Coninck, 1933 



Amphids multispiral; cuticle coarsely punctate; hypo- 

 dermal glands often prominent; usually 12 prominent 

 labial rugae; stoma usually cyathiform (i. e., two-part 

 funnel-shaped) ; teeth, if present, at junction of two parts; 

 esophagus elavate to cylindroid; commonly double guber- 

 naculum, often dentate or denticulate; tuboid, chroma- 

 doroid, or setose supplements; reflexed ovaries. Marine. 



Subfamily Cyatholaiminae Micoletzky, 1922 



Stoma funnel-shaped or shallow, without ribs to the 

 base or jaws; dorsal tooth or onchium usually present. 



41. Cyalholaimus sunesoni Allg^n, 1947. Locality: To- 



bago, Br. W. Indies. 



42. Nannolaimus gutlalus Cobb, 1920. Locality: Biscayne 



Bay, Fla. 



43. Acanthonchus cobbi Chitwood, 1951 (fig. 64, B, C). 



Locality: Rockport Harbor, Tex. 



44. Paracanlhonchus truncatus (Cobb, 1914) Chitwood, 



1951. Locality: Silver Springs, Fla. Reported by: 

 Cobb, 1914. 



Subfamily Choanolaiminae Filipjev, 1934 



Stoma deep cyathiform, with 6 or 12 ribs; jaws and 

 dorsal tooth absent. 



45. Halichoanolaimus quatuordecimpapillatus Chitwood, 



1951 (fig. 64, A). Locality: Aransas Bay, Tex. 



46. Synonchium obtusum Cobb, 1920. Locality: Miami, 



Fla. 



Superfamily DESMODOROIDEA Steiner, 1927 



Cephalic capsule or helmet usually present; amphids 

 various, not vesiculate; cuticle annulate, not punctate; 

 glandular tube setae present or absent. Mostly marine. 



Family DESMODORIDAE Micoletzky, 1924 



Body not epsilonoid; ambulatory bristles and glandular 

 setae absent. 



Subfamily Desmodorinae Micoletzky, 1924 



Amphids circular or spiral; helmet present; cuticle not 

 tiled; dorsal tooth usually present. 



47. Desmodora dubia AUg^n, 1947. Locality: Tobago, Br. 



W. Indies. 



48. Xennella cephalata Cobb, 1920. Locality: Key West, 



Fla. 



49. [chthyodesmodora chandleri Chitv/ood, 1951. Locality: 



Copano Bay, Tex. 



50. Bolbonema brevicolle Cobb, 1920. Locality: Kingston 



Harbor, Jamaica. 



51. Croconema cindum Cobb, 1920. Locality: Port Royal, 



Jamaica. 



52. Leplonemella cincta Cobb, 1920. Locality: Miami, 



Fla. 



53. Laxonema majum Cobb, 1920. Locality: Kingston 



Harbor, Jamaica. 



54. Siilhonema brevicolle Cobb, 1920. Locality: Kingston 



Harbor, Jamaica. 



Superfamily DESMOSCOLECOIDEA Stekhoven, 1935 



Amphids vesiculate; helmet present; cuticle coarsely 

 striated, without punctations; ocelli common; non-sclero- 

 tized stoma; four short cephalic setae; tubular gland setae 

 present; esophagus not clearly divided, glands often free; 

 supplements absent; reflexed ovaries. Marine. 



Family DESMOSCOLECIDAE Southern, 1914 



Coarsely annulate cuticle, not usually hirsute. 



55. Desmoscolex americanus Chitwood, 1936. Locality: 



Aransas Bay, Tex. Reported by Chitwood, 1951. 

 Other localities: Bogue Sound, N. C. 



