. Bulletin of the British Museum (Natural History). 114 AILSA M. CLARK A. B. C. D. A Table 7 Comparison of spine development on the cirri of Heteromeira madagascarensis and H. africana Cirrus length (mm) Height of opposing spine Remaining breadth of penultimate segment Maximum cirrus breadth at fourth segment B A : C A : D dagascar Kenya 25 18 ' 0-35 0-25 I-00 070 1-30 0-95 72 : I 72 : I 25 : I 26 : I 19 : I ig : I The development of the opposing spine is directly proportional to that of the other dorsal spines on the distal segments and is clearly indistinguishable in these two specimens. As
. Bulletin of the British Museum (Natural History). 114 AILSA M. CLARK A. B. C. D. A Table 7 Comparison of spine development on the cirri of Heteromeira madagascarensis and H. africana Cirrus length (mm) Height of opposing spine Remaining breadth of penultimate segment Maximum cirrus breadth at fourth segment B A : C A : D dagascar Kenya 25 18 ' 0-35 0-25 I-00 070 1-30 0-95 72 : I 72 : I 25 : I 26 : I 19 : I ig : I The development of the opposing spine is directly proportional to that of the other dorsal spines on the distal segments and is clearly indistinguishable in these two specimens. As for the relative length of the cirrus segments, A. H. Clark's key and diagnosis to H. madagascarensis are directl)' contradicted by his description of the holotype which gives the longest cirrus segments as 'from only slightly broader than long to. Fig. II. Heierometya madagascarensis (A. H. Clark). reg. no. , Nosy Be, Madagascar. Arm br 2-i mm (after IIBr series), a. side view of proximal part of one post-radial series from IIBn to Br? showing Pd and Pi to P3; b. mature cirrus and c. tip of another cirrus without a spine on the antepenultimate segment. [The scale equals 2 mm.]. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)
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