Part II - State of New Jersey

he rostral horn as from the second tooth. Cephalic arch armed wit11eight pnnctulate, inflated-conical spines arranged as follows: one behindeach rostral horn, a median spine between the bases of the rostralhorns, and five spines forming a slender triangle pointing distad. Theapex of this triangle is situated on the midline at the anterior third ofthe eephalon, tlic base is just before the cervical groove. Opposite theapical spine of the triangle and a little more than halfway between itand the lateral edge of the carapace, an arcuate row of granules arisesand extends backward almost to tl~e posterolateral corner of the ccplin-Ion. Cervical groove transverse medially, lateral arms oblique and almoststraight. Median keel of thorax more elevated than the lateralkeels, the latter bearing 12 to 14 spines of \vl~icl~ the distal one is thelargest. An oblique arcuate keel mliich bears a single row of transverse,adpressed spinnles is situated on the vertical \\,all of the tl~orax~lircctly behind the cervical groove. The anterior extrcrnity of this keelis in line with the antenn;~l keel. Ground surfaces of car;ip;lce minutelypunetate as seen under a lens; distant, conical-to acorn-sliaped granules(lot the thorax and tllerc are a few seatterecl granales on the cepl~alonnear the cervical groove.Afcasurements of l~olotype: length of carapace not inclulling t.he, rostrum 52; length of rostrum (tip missing) 7; length of eeplialon 24,aidth, 25.7; width of thorax 31 mm.Remarks.-Closely related to L. (P.) watkinsi Stenzel (1945, p. 408,pl. 34, figs. 5.8; pl. 45, figs. 1, 2; text fig. 4. Brinton formation, EagleFord group, Texas) hut differs from the latter in having a much shallowerterminal rostral notell, unarmed rostral horns, and one (insteadof two) spines behind each rostral horn.As the posterior portion of tl~ ecpl~alon of Lin~cpun~s (Eoli?z~iporz~s)kleinfelderi ilathbun (1931, p. 161, Rferchantville formation;Staten Island, New York) is without spines, it is not likely to be eonfusedwith our spccies, altl~ough both species occur in the Jlerchant-\rille formation.This is the second specics of Li?zt~par~cs that has been found in thenortheastern United States. It is named for Dr. Horace G. Richards.Distribution i?i ~Vezu Jersey.-hferchantville formation: GrahamBriek Company pits (type locality), Maple Shade.Ho1olype.-ANSP 19739.Tribe BRACHYURIDEA GlaessnerFamily Dynornenidae OrtmannGenus Xantliosia Bell, 1863IXanthosia elegans Roberts n. sp.Plate 89, Figures 1, 3Description.-Carapace nearly twice as wide as long; grannlationNEW JERSEY GEOLOGICAL SURVEY