Part II - State of New Jersey

CRUSTACEA 191trends forward and outward. The carpopropodal articulation is on theinside of the palm.Measurements of cited specimen: length 23.2 mm., anterior height10.9 mm., thickness 6 mm.Ren1arks.-This indeterminable species is represented by a uniqueright palm which has the stumps of the dactylus and fixed finger inplace. It strongly resembles the palm of a portunid crab and appearsto be close to Ratbbun's (1935, p. 52) genus Ophthalmoplax.Distn'bution in New Jersel~.-Formation unknown: "MonmonthCounty. Lower Marl."Cited specimen.-ANSP 19740.Dempoda indetText Figure 4"Brachynra (9) Pragment of a finger (?)." Pilsbry, 1901, p. 117, pl.1, fig. 17."Antenna of a Polinnrid." Ratbbun, 1935, p. 60."(A)ntenna of a Palinurid." Kindle, 1949, p. 17.Description.-An elongated fragment with a key-hole cross-section;a row of 8 to 10 long, conical tubercles on each margin of the wider (orupper) surface ; a wide longitudinal groove slightly below the middle ofthe inner and outer surfaces ; three parallel rows of 4 to 6 small, conicaltubercles on the lomer surface. Two of the rows on this lover surfaceare lateral, one is medial, and one of the lateral rows is visible fromthe inner side of the fragment. On the outer surface of the fragment,above the longitudinal groove, there is a row of three small, widelyspaced tubercles.Length of fragment, 26.4 mm., posterior height, 7.9, posterior thickness5.5 mm.Remarks.-The original label of this unique specimen gives nostratigraphic information. It reads, "Monmouth Co., N. J., WilliamCleburne." However, Pilsbry (1901, p. 111) states that the specimencame from the "Lower Marl." Rathbun (1935, p. 8) lists it under theNonmouth group, and Kindle (1949, p. 17) assigns it to the Ravesinkformation. The fact is that the formation from which this specimencame is unknown, nor is it likely that it is the antenna of a palinurid.Distribution i?& New Jersey.-Formation unknown : MonmouthCounty.Cited specimen.-ANSP 19729.NEW JERSEY GEOLOGICAL SURVEY