. Bulletin - United States National Museum. Science. 280 BULLETIN 100, UNITED STATES NATIONAL MUSEUM Measurements.— Apertural^a = 0-25 mm. Ordinary \Lz = mm. l?a = mm. zooecia (Z2 = mm. Ovicelled zooecia JZ,2= mm. ^ rturaJ7wi = mm. (including ovicell)[Z2 = mm. [Z2 = mm. Affinities.—The micro-metric measurements are quite variable and vary much according to the irregularity of the substratum. We know the New Zealand species only from Waters' figure of 1887. Our specimens are very closely allied to it and differ only in their separating thread much les
. Bulletin - United States National Museum. Science. 280 BULLETIN 100, UNITED STATES NATIONAL MUSEUM Measurements.— Apertural^a = 0-25 mm. Ordinary \Lz = mm. l?a = mm. zooecia (Z2 = mm. Ovicelled zooecia JZ,2= mm. ^ rturaJ7wi = mm. (including ovicell)[Z2 = mm. [Z2 = mm. Affinities.—The micro-metric measurements are quite variable and vary much according to the irregularity of the substratum. We know the New Zealand species only from Waters' figure of 1887. Our specimens are very closely allied to it and differ only in their separating thread much less salient and scarcely visible; the micro- metric measurements are very close. We do not believe that a new species should be created but it is possible that a better study of the fossil form will show differences invisible on Waters' figure. G. rostrigera differs from G. biturrita Hincks, 1885, in its much smaller and marginated ovicell, and in its less salient avicularia. Biology.—Our specimens were living and in reproduction (ovicelled) February 15, 1908. Unfortunately our specimens from the China Sea were dead and deprived of chitinous appendages. We are ignorant therefore of the duration of Fia. 115.—Gephyrophora rostrigera Waters, 1885 A-C. Different form of opercula of ordinary zooecia, X85. D-F. Three opercula, X85, of ovicelled zooecia. Occurrence.— D. 5137. Jolo Light, Jolo; 6° 04' 25" N.; 120° 58' 30" E.; 20 fathoms; S. Sh. D. 5141. Jolo Light, Jolo; 6° 09' N.; 120° 58' E.; 29 fathoms; co. S. D. 5147. Sulade Island, Sulu Archipelago; 5° 41' 40" N.; 120° 47' 10" E.; 21 fathoms; co. S. Sh. " D. 5179. Romblon Light, Romblon; 12° 38' 15" N.; 122° 12' 30" E.; 37 fathoms; hard S. D. 5311. China Sea, vicinity of Hong Kong; 21° 33' N.; 116° 15' E.; 88 fathoms; crs. S., Sh. Plesiotypes.—Cat. Nos. 8029-8032, Please note that these images are extracted from scanned page images that may have been d
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