. Bulletin. Science. A HEXACTINELLID SPONGE NEW TO CALIFORNIA 125. Fig. 2. Spicules of Heterochone incognitus specimen SIO P 592. A, dermal pinular hexactin. B, atrial pinular hexactin. C, small moderately-spined hexactin. D, larger coarsely-spined hexactin. E, uncinate, entire and magnified segment. F, narrow scopule with 4 tines. G, divergent scopule with 6 tines. H, oxyhexactine microsclere. I, two hemioxyhexasters with branching restricted to rays of the major axis. J, discohexaster. Heterochone incognitus (Koltun, 1967) Figs. 1-2, Table 1. Synonymy.—Aphrocallistes beatrix incognitus Kotun
. Bulletin. Science. A HEXACTINELLID SPONGE NEW TO CALIFORNIA 125. Fig. 2. Spicules of Heterochone incognitus specimen SIO P 592. A, dermal pinular hexactin. B, atrial pinular hexactin. C, small moderately-spined hexactin. D, larger coarsely-spined hexactin. E, uncinate, entire and magnified segment. F, narrow scopule with 4 tines. G, divergent scopule with 6 tines. H, oxyhexactine microsclere. I, two hemioxyhexasters with branching restricted to rays of the major axis. J, discohexaster. Heterochone incognitus (Koltun, 1967) Figs. 1-2, Table 1. Synonymy.—Aphrocallistes beatrix incognitus Kotun, 1967: 60, Fig. 39. Holotype.—Zoological Institute, Russian Academy of Science (Leningrad) N 16362 (2 fragments), 148°57'E, 44°41'N, 780m, RV 'Vitiaz' stn. 5640 (not ex- amined). Material examined.—SIO P 592, in alcohol, 118°'W, 33°'N. 1165-958 m depth, 11 Dec. 1971, RV 'Thomas Washington', col. Mathews. Body and framework.—Specimen a massive irregular fragment, cm X cm X cm, as part of basal region without attachment site; dead skeletal frame-. 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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