. Annual report. New York State Museum; Science; Science. 43 2 NEW YORK STATE MUSEUM fa I Climacograptus modestus sp. nov. Plate 28, figure 30 Description. Synrhabdosome not observed. Rhabdosome narrow (., in the majority of specimens i mm wide), but attaining considerable length (21 mm). Sicular extremity broadly rounded, rhabdosome attaining full width within the space of a few thecae and maintaining this to antisicular extremity which is abruptly cut across without preceding narrowing. Sicular extremity furnished with short vimella and two straight horizontal lateral spines. Sutural gr
. Annual report. New York State Museum; Science; Science. 43 2 NEW YORK STATE MUSEUM fa I Climacograptus modestus sp. nov. Plate 28, figure 30 Description. Synrhabdosome not observed. Rhabdosome narrow (., in the majority of specimens i mm wide), but attaining considerable length (21 mm). Sicular extremity broadly rounded, rhabdosome attaining full width within the space of a few thecae and maintaining this to antisicular extremity which is abruptly cut across without preceding narrowing. Sicular extremity furnished with short vimella and two straight horizontal lateral spines. Sutural groove zigzagged with short, horizontal lateral branches. Sicula mm long, slender. Thecae very closely arranged, numbering 14 to 18 (mostly 16) in the space of 10 mm, overlapping one third of length, bent twice, two fifths of length adhering to nemacaulus and directed slightly inward, one fifth directed abruptly, almost at right angles outward and last two fifths subparallel to axis of rhabdosome or slightly inclined inward. The distal free part of theca squarish in compressed speci- mens ; the apertural excavations in the lat- ter are narrow horizontal notches, whose depth is one fourth to one third of the 403 width of the rhabdosome. The septum extends the whole length of the rhabdo- 400 y^-s 401 1 402 « - r —v fe Fig 400-3 ciimacograptus modcst„ some and is apparently complete. Nema- nov. Different aspects of typical specimens. Sicu- lar end of specimen 400 not preserved in as strong CaiUUS thill and sllOrt. relief as shaded. Figure 401 enlarged x 5, the others Formation and localities. This species is very common in one of the layers of the Normanskill shale at Mt Moreno, near Hudson, N. Y. and has also been observed in a few specimens in the same' horizon at the north end of Lansingburg. Remarks. C. mo dest us is similar to C. parvus in some features. Please note that these images are extracted from scanned page images that may have been digitally enhanced for
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