. Bulletin - United States National Museum. Science. 486 BULLETIN 129^ UNITED STATES NATIONAL MUSEUM MACROCOELOMA EMTERMEDroM Rathbun Plate 170, fig. 2; plate 171, fig. 2 Macrocoeloma eutheca Rathbun, Proc. U. S. Nat. Mus., vol. 15, 1892, p. 251, except synonymy. Not Pericera eutheca Stimpson. Macrocoeloma intermedium Rathbun, Bull. U. S. Fish Comm., vol. 20, for 1900, pt. 2 (1901), p. 75 (type-locality, off Havana, 163 fathoms; holo- type, male, Cat. No. 9492, ). Diagnosis.—Rostral horns separated by a V-shaped sinus. Basal half of rostrum with outer margins convex. Postero-lateral sp
. Bulletin - United States National Museum. Science. 486 BULLETIN 129^ UNITED STATES NATIONAL MUSEUM MACROCOELOMA EMTERMEDroM Rathbun Plate 170, fig. 2; plate 171, fig. 2 Macrocoeloma eutheca Rathbun, Proc. U. S. Nat. Mus., vol. 15, 1892, p. 251, except synonymy. Not Pericera eutheca Stimpson. Macrocoeloma intermedium Rathbun, Bull. U. S. Fish Comm., vol. 20, for 1900, pt. 2 (1901), p. 75 (type-locality, off Havana, 163 fathoms; holo- type, male, Cat. No. 9492, ). Diagnosis.—Rostral horns separated by a V-shaped sinus. Basal half of rostrum with outer margins convex. Postero-lateral spine behind widest part of carapace. Description.—Carapace oblong, width at orbits subequal to width at branchial regions, excluding branchial spines. Constriction behind orbits much less than in eutheca. Three median spines, gastric, cardiac and intestinal, the latter slender and curved. A larger, similar spine behind postero-lateral angle and a little above it on the carapace a spinule or tubercle. Lat- eral margin rough with spinules, one or two of which are hepatic. Orbital sheaths much shorter than in eutJieca; margin armed with four spines or teeth, one pre- ocular, one postocular and one infero- posterior spine; above some crenulations and a tooth behind the sinus. Basal an- tennal article armed with two long spines, Fig. 138.—Macrocoeloma iNTERMEDi- the outer of wMch forms a submarginal UM (9492), BASAL ANTENNAL ARTICLE, • ,i l^'ilJ-U "D^i, 1™ XQ spme on the orbitpJ tube. Kostrum large, base very broad and with convex lateral margins, horns divergent, separated by a V-shaped interspace. Pterygostomian region tuberculate. Chelipeds with about four short, stout, blunt spines on upper margin of merus; carpus granulate; manus smooth. Measurements.—Male, holotype, length of carapace measured from posterior margin to tip of rostral horn 25, length measured from between rostral horns , greatest width at orbits 16, greatest branchial width 18, branchial widt
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