. Bulletin of the British Museum (Natural History). 54 H. EASON spine the anterior border forms a feeble rounded angle ; median cleft very shallow (Fig. 23). Tergites: posterior angles of blunt, those of angulated, those of and 14 angulated and slightly projecting; posterior borders of large tergites only feebly emarginate ; posterior angles of with distinct rounded projections, those of with rather broader rounded projections, those of , 11 and 13 with broad sharp projections; intermediate tergite very feebly emarginate posteriorly. Coxalpores: 5,4,4,4; circular or so
. Bulletin of the British Museum (Natural History). 54 H. EASON spine the anterior border forms a feeble rounded angle ; median cleft very shallow (Fig. 23). Tergites: posterior angles of blunt, those of angulated, those of and 14 angulated and slightly projecting; posterior borders of large tergites only feebly emarginate ; posterior angles of with distinct rounded projections, those of with rather broader rounded projections, those of , 11 and 13 with broad sharp projections; intermediate tergite very feebly emarginate posteriorly. Coxalpores: 5,4,4,4; circular or somewhat reniform ; separated from one another by less than their own diameter, i^th leg: 7-4 mm long, about the same length as 13th leg; according to Pocock much shorter than 14th leg which is now missing; tibia and tarsus modified ; accessory apical claw half the length of principal claw. Male secondary sexual characters: 14th leg unmodified according to Pocock; 15th femur with a feeble dorsal sulcus ; 15th tibia very swollen, excavated posterodorsally with a flat wart-hke outgrowth occupying most of the excavation ; 15th tarsus even more swollen, extensively and deeply excavated posterodorsally (Fig. 24).. Figs. 22-24. Lithobius pontifex. Fig. 22. Ocelli. Fig. 2^. ventral; the separation of the two halves is an artifact, posterior (internal). Dental margin of prosternum, Fig. 24. Right 15th leg of cJ. Spinulation: Ventral Dorsal C t P F T C t P F T 13 — m amp amp am a — amp ap ap 15 — m amp amp a a amp Remarks. Chamberlin (1912) erected Arenobius to receive most of the species then known to him which he later (1915) assigned to the Gosobiidae. Kunobius (Chamberlin 1912) was erected as a subgenus of Arenobius to receive such species as L. pontifex and L. humberti Pocock which, while having some modification of the male 15th legs, have the 14th legs unmodified. Chamberlin made no mention of. Please note that these images are extracted from scanned page images that may have
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