. Bulletin. Science; Natural history; Natural history. NEW SPECIES OF DEEP-SEA SHRIMP 139. Fig. 1. Plesionika sanctaecalatinae. n. sp. Male, carapace length mm. 25 miles from Pyramid Head, San Clemente Island, California. 1846-1938 m, \'elero /!'sta. 12390-68. Entire animal in lateral view. Rostrum broken, fifth pereopods missmg. pleuron of third segment subquadrate. pleura of fourth and fifth segments narrowly rounded. Sixth segment about 2X length of fifth segment, posteroventral angle with minute tooth. Telson shorter than sixth segment and uropods. with three pair small dorsolateral s
. Bulletin. Science; Natural history; Natural history. NEW SPECIES OF DEEP-SEA SHRIMP 139. Fig. 1. Plesionika sanctaecalatinae. n. sp. Male, carapace length mm. 25 miles from Pyramid Head, San Clemente Island, California. 1846-1938 m, \'elero /!'sta. 12390-68. Entire animal in lateral view. Rostrum broken, fifth pereopods missmg. pleuron of third segment subquadrate. pleura of fourth and fifth segments narrowly rounded. Sixth segment about 2X length of fifth segment, posteroventral angle with minute tooth. Telson shorter than sixth segment and uropods. with three pair small dorsolateral spines and two pair terminal spines. Eye large, rounded and pigmented, without ocellus. Cornea not reaching end of first segment of antennular peduncle. First segment of antennular peduncle the longest. Stylocerite longer than cornea of eye, with strong, blunt lateral hook at base. Second and third segments about equal in length. All segments with long, fine setae. Flagclla long and slender. Basicerite of second antenna with sharp point on lateral margin. Carpocerilc reaching first segment of antennular peduncle. Scaphoceritc as long as wide, with lateral spine exceeding blade; mesial margins fringed with setae. Flagolhim at least as long as body of shrimp, but usually broken when collected. Mandible with 6-8 incisor teeth; molar process with teeth and ridges, palp with three segments. First maxilla with narrow proximal endite. broad distal endite and bilobed palp. Second maxilla with lower endite reduced, upper endite well developed and incised; palp and scaphoceritc well developed. First maxiliiped with endites of basis and coxa dislinctK separated, palp well de\ eloped, exopod large, with distinct llagellum and caridcan lobe, epipod large and bilobed. Second maxiliiped with well developed exopod, epipod and podobranch. Third maxiliiped exceeding scaphoceritc, with exopod and epipod. its distal segment slighth shorter than penultimate segment, penultimate segment shorter
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Keywords: ., bookcentury1900, booksubjectnaturalhistory, booksubjectscience
