LEODICID^E OF THE WEST INDIAN REGION. 



21 



I have found some with only 6. As Verrill stated, the filaments arise from a short stem, 

 so that the gills are digitate rather than pectinate. There are two pairs of very unequal 

 anal cirri (plate 1, figure 13). 



The first parapodium (text-figure 31) has very prominent cirri, the dorsal much 

 longer and more slender than the ventral. The setal portion has a straight posterior 

 lip and a rounded anterior one, the latter divided by a notch into a dorsal and a ventral 

 lobe; this is not shown in the figure, which is a posterior view. There are two aciculse 

 in the setal lobe, and a tuft of needle aciculse extends into the dorsal cirrus. 



Later parapodia show very long dorsal cirri, a character which it seems to me led 

 Verrill to describe a single incomplete specimen as a new species, L. tenuicirrata. The 

 tenth parapodium (text-figure 32) shows this long cirrus extending beyond the gills. 

 The ventral cirrus is short and blunt, borne on a heavy base. The setal lobe is rounded 

 and contains a pair of heavy acicute, and the needle aciculse are present in the dorsal 

 cirrus. Later parapodia (text-figure 33, from the middle of the body) show essentially 

 the same form, as far as the setal lobe is concerned, but the cirri are very much reduced 

 in size and a ventral hooked acicula has made its appearance. 



The simple setse (text-figure 34) are very long and slender, with no indication of 

 a wing; the compound setse (text-figure 35) have the basal portions enlarged at the 

 apex and very finely toothed along their convex surfaces. The terminal joint of each is 

 small with a terminal and a subterminal tooth of about equal size, and is covered by 

 a striated wing. The pectinate setse (text-figure 36) have very slender shafts and 7 or 

 8 prominent teeth, the terminal tooth at one end being much longer than at the other. 



34 



35 



TEXT-FIGURES 31 to 40. Leodice stigmatura Verrill. 



31. First parapodium x34. 35. Compound seta x420. 38. Hooked acicula x320. 



32. Tenth parapodium x34. 30. Pectinate seta x420. 39. Maxilla x52. 



33. Middle parapodium x34. 37. Simple acicula x320. 40. Mandible x52. 



34. Simple seta x420. 



