. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. BuLLETix, So. Calif. Academy of Sciences Vol. 60, Part 3, 1961 HoLOTYPE—^ AHF 5726, adult female, mm. Type locality — VELERO IV station 4851-57, Mugu Canyon, miles 134°T from Port Hueneme light, California, bearing 34-03-30 N, 119-05-55 W; in 560 feet of water, found at this sta- tion only. Total of 19 specimens, females and juvenile males. Hayward grab, olive green sandy silt. Leucon magnadentata new species Diagnosis — Adult female. Carapace compressed, slender, not robust. Pseudoro
. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. BuLLETix, So. Calif. Academy of Sciences Vol. 60, Part 3, 1961 HoLOTYPE—^ AHF 5726, adult female, mm. Type locality — VELERO IV station 4851-57, Mugu Canyon, miles 134°T from Port Hueneme light, California, bearing 34-03-30 N, 119-05-55 W; in 560 feet of water, found at this sta- tion only. Total of 19 specimens, females and juvenile males. Hayward grab, olive green sandy silt. Leucon magnadentata new species Diagnosis — Adult female. Carapace compressed, slender, not robust. Pseudorostrum large, triangular, slightly upturned; anterior margin equipped with two or three small, curved, blunt teeth and a few setose bristles. Subrostral notch not extremely deep; ventro- lateral margin of carapace strongly toothed anteriorly for about one-third its length. The dorsal crest of this species is extremely diagnostic, consisting of a few large, curving denticles instead of many small serrations, as is seen in many species of this genus. Of the four specimens examined, three were adult females, showing slight variations in carapace character, as seen below : Female No. 1 — pseudorostrum slightly upturned, with two or possibly three small blunt teeth; immediately behind the pseudo- rostrum are five large teeth followed by two smaller ones, carry- ing the dentition of the dorsal crest to about the halfway mark on. PLATE 36 Lcucoii magnadentata n. sp. A—uropods B—Adult female, sta. 5762, mm. C—Pereopod 1 D—section of maxilliped 3, fourth and fifth joints, showing teeth 139. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Southern California Academy of Sciences. Los Angeles, Calif. : The Academy
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