40 



LEODICID^ OF THE WEST INDIAN REGION. 



accessory plates and crescentic pigment patches, the latter dark brown. The man- 

 dible has slender shafts, the terminal beveled portion with concentric brown lines and 

 an anterior marginal expansion (text-figure 116). 



Collected at Guanica Harbor and near Fort Geronimo in Condado Bay, Porto 

 Rico, at Sand Key off Key West Harbor, Florida, and in Montego Bay, Jamaica. 



The type is from Sand Key and is in the American Museum of Natural History. 



Text-figures 107 to 1 16. Leodiee guanica Treadwell. 



107. First parapodium x34. 



108. Tenth parapodium x34. 



109. Thirty-fifth parapodium 



110. Simple seta x205. 



111. Compound seta xl93. 

 « 112. Pectinate seta x310. 



x34. 113. Simple acieula xl93. 



Leodiee filamentosa Gnibe. 



114. Hooked aeicula xl93. 



115. Mandible x20. 



116. Maxilla x20. 



(Plate 1, figures 14 to 17; text-figures 117 to 126.) 



Eunice filamentosa Grube, 1856, p. 56. 



Eunice hamata Sehmarda, 1861, p. 125, with text-figures. 



The individual figured (plate 1, figure 14) was 150 mm. long, with a head-width of 

 2 mm., and had 320 somites. 



The anterior region of the Hving animal has a coloration due to a combination of a 

 brownish pigment, a pearly white luster, and considerable iridescence. The fifth and 

 sixth somites are without pigment and hence appear white. Behind about somite 20 

 the body is mostly a pearly gray, more or less modified by the color of the intestinal 

 contents and the blood, seen through the body-wall. The ventral surface is colored 

 throughout like the dorsal posterior region. 



The prostomium (plate 1, figure 15) is very distinctly four-lobed with reddish spots 

 on its dorsal surface. The tentacles are supported on rather large cirrophores and are 

 very long, the median reaching to the eighth somite. The inner lateral are shorter than 

 the median and the outer lateral are not more than half as long as the median. The 

 median and inner paired are marked with numerous brown spots; the outer paired 

 are colorless. 



