. Bulletin - United States National Museum. Science. 430 BULLETIN 100, UNITED STATES NATIONAL MUSEUM Occurrence.— D. 5137. Jolo Light, Jolo; 6° 04' 25" N.; 120° 58' 30" E.; 20 fathoms; S. Sh. D. 5144. Jolo Light, Jolo; 6° 05' 50" N.; 121° 02' 15" E.; 19 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.; ° C. Plesiotypes.—Cat. Nos. 8250-8252, Genus SCHISMOPORA MacGillivray, 1888 SCHISMOPORA CHRYS
. Bulletin - United States National Museum. Science. 430 BULLETIN 100, UNITED STATES NATIONAL MUSEUM Occurrence.— D. 5137. Jolo Light, Jolo; 6° 04' 25" N.; 120° 58' 30" E.; 20 fathoms; S. Sh. D. 5144. Jolo Light, Jolo; 6° 05' 50" N.; 121° 02' 15" E.; 19 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.; ° C. Plesiotypes.—Cat. Nos. 8250-8252, Genus SCHISMOPORA MacGillivray, 1888 SCHISMOPORA CHRYSALIS, new species Plate 62, figs. 11, 12 Description.—The zoarium is large, fusiform, hollow, encrusting fine radicells of algae; the surface is mammillated; the salient por- tions are black, while the remainder is rose brown. The zooecia are very erect, almost orbicular; the frontal is granular and surrounded by scattered areolar pores. The aperture is semielliptical, somewhat transverse, with a very wide concave proxi- mal rimule; the peristomice is orbicular and frequently bears a narrow rimule bordered on one side by an avicularian umbo. The ovicell is globular, surrounding the aperture which it partially covers, granular and perforated by very small tremopores; its orifice is very large and is not in agreement with the operculum. The aperture of the deep zooecia is only visible. The zoarial avicularia are elongated, ellip- tical; their beak is rounded, non salient; their mandible is slightly spatula te. Mea sure me nts. — lha = mm. v • (1,2 = mm. Aperturaj, Zooecia^. Fig. 169.—Schism opora chrysalis, new species. Operculum and mandible, X85 [Za = mm. ""1^2 = mm. Affinities.—The avicularian beak is very inconstant in form and position; it is sometimes little visible. The operculum is very thin: it bears a sinuous proximal border and two muscular attachments little distant from the border. The form of the colony recalls th
Size: 1506px × 1659px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
