Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass . n lowest range ; one iBr passing down between two radials and meeting truncatedbasal. (The same thing occurs in a perfectly dicyclic and a monocyclic specimen,Nos. LXVI a and b.) Interpinnulars present. No. 52 a. 6. Large specimen, monocyclic; with 10 to 23 plates in iBr areas ; 2 to 3 plates inlowest range ; iBr in 3 areas passing down between radials and truncating 3basals. No. 61. 7. Large specimen ; the intersecundibrachs in one ray replaced by a large fixed pin-nule, indicated by crossed lines. No. 1. 8. M
Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass . n lowest range ; one iBr passing down between two radials and meeting truncatedbasal. (The same thing occurs in a perfectly dicyclic and a monocyclic specimen,Nos. LXVI a and b.) Interpinnulars present. No. 52 a. 6. Large specimen, monocyclic; with 10 to 23 plates in iBr areas ; 2 to 3 plates inlowest range ; iBr in 3 areas passing down between radials and truncating 3basals. No. 61. 7. Large specimen ; the intersecundibrachs in one ray replaced by a large fixed pin-nule, indicated by crossed lines. No. 1. 8. Medium specimen, monocyclic; the ill Br plates and one arm branch wanting inone ray, —a large pinnule, marked by a dotted line, originating upon one bifur-cating face of IBro. Part of No. XIV c. 9. Large specimen, with an extra pinnule-bearing arm developed in place of thesecond fixed pinnule of the left ramus of the ray, —indicated by dotted line. Part of No. X e.(All figures natural size. Figs. 8 and 9 by Mrs. Ricker; 4 by Mr. Syd. Prentice;the others by Chapman.) PLAJE V]..
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1901
