. Carnegie Institution of Washington publication. 134 LeodicidcB jrom Fiji and region of somite 50. The prostomium is broader than tlie peristomium (plate 1, fig. 8) and decidedly 2-lobed, its dorsal surface dark in color, the anterior margin and regions lateral to the eyes being colorless. The tentacles are colorless, the median one 4 to 5 times as long as the prostomium and pointed at the apex. The tentacles are more sharply pointed and have longer cirrophores than in L. viridis. Preserved material retains the coloration of the anterior end, so that for about the first 40 somites bo
. Carnegie Institution of Washington publication. 134 LeodicidcB jrom Fiji and region of somite 50. The prostomium is broader than tlie peristomium (plate 1, fig. 8) and decidedly 2-lobed, its dorsal surface dark in color, the anterior margin and regions lateral to the eyes being colorless. The tentacles are colorless, the median one 4 to 5 times as long as the prostomium and pointed at the apex. The tentacles are more sharply pointed and have longer cirrophores than in L. viridis. Preserved material retains the coloration of the anterior end, so that for about the first 40 somites both dorsal and ventral surfaces are dark brown. The anterior somites do not have the colorless band on their anterior borders which are present in L. viridis (compare fig. 1 and fig. 8, plate 1). The parapodia are uncolored, as are the nuchal cirri. In the epitokous portion there is on either side of the dorsal surface in each somite a dark spot at the base of the parapodium (plate l,fig. 11). Apparently these spots do not extend to the very posterior end, but I could not determine this with certainty in the material at my disposal. They may also be found on a few of the posterior atokous somites. A parapodium from setigerous somite 10 is shown in plate 1, fig. 10. The prominent pad-like swelling which carries the ventral cirrus begins at about this region and extends for about the first quarter of the length of the animal. The gills have about the same arrangement that they have in L. viridis, but are more slender, extend into the epitokous region, and are relatively more promi- nent. A small L. viridis may be distinguished from one of the variety of the same size by the fact that the gills in viridis would be much smaller than in the variety. An epitokous parapodium (plate 1, fig. 11) has a small dorsal cirrus with the long gill attached near its base. There are two pairs of anal cirri quite similar to those of L. viridis, the jaws, except for size, are exactly like those of t
Size: 953px × 2623px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorcarnegie, bookcentury1900, bookdecade1920, bookyear1922
