. Bulletin. Natural history; Natuurlijke historie. 36 A SYSTEMATIC STUDY OF THE DEMOSPONGIAE OF JAMAICA appearance is certainly similar, and the spicules, described as "umspitzigen nadeln," are apparently strongylote. Callyspongia pallida n. sp. (Text-fig. 6; plate III, fig. 5). Fig. 6. —Spicules of Callyspongia pallida. Oxeas, style, strongyle. YPM 5038. Holotype. HoLOTYPE. YPM 5038. Seawall of Police Post. November 30, 1960. Habitat. The specimen was collected on the seawall of the Police Post at Port Royal in several feet of water. Shape. The sponge is a horizontally spreading com
. Bulletin. Natural history; Natuurlijke historie. 36 A SYSTEMATIC STUDY OF THE DEMOSPONGIAE OF JAMAICA appearance is certainly similar, and the spicules, described as "umspitzigen nadeln," are apparently strongylote. Callyspongia pallida n. sp. (Text-fig. 6; plate III, fig. 5). Fig. 6. —Spicules of Callyspongia pallida. Oxeas, style, strongyle. YPM 5038. Holotype. HoLOTYPE. YPM 5038. Seawall of Police Post. November 30, 1960. Habitat. The specimen was collected on the seawall of the Police Post at Port Royal in several feet of water. Shape. The sponge is a horizontally spreading complex of lobes. The lobes are cm in height and have apical oscules. Connecting stems are about 1 cm long and cm in diameter. Color. The sponge was dull yellow in life and is a pale beige in alcohol. Consistency. Compressible, soft, elastic. Surface. Even, smooth to the touch. Ectosome. The dermal layer can be detached only with difficulty. It is a callyspongiid double network of spongin fibers. The two networks gradually intergrade with respect to fiber diameter. The small fibers are 7-30 fx. in diameter. They are mostly unispicular, with the spicules in a continuous line, or less frequently, somewhat spaced. The meshes are 60-220 ^ in width. They are often nearly square or rectangular, with rounded corners. The large fibers are 30-45 ja in diameter and usually have several rows of spicules in a continuous axial core. The meshes are triangular to polygonal. Parallel fibers may be 200-580 n apart. The dermal pores are 35-45 /j, in diameter. A few interstitial spicules are present. Endosome. The interior fibers are 20-75 p, in diameter. Thinner fibers are mostly unispicular. Thicker fibers have a continuous axial core of 3-6 rows. The square to rec- tangular meshes are mostly 300-600 /x in maximum width. A few interstitial spicules occur in the flesh. A number of dense, nearly spherical embryos, 160-217 p. in diameter, are present in the specimen which was collected
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