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Show 166 MR. W. R. O.GRANT ON THE [Mar. 4, 17. SICYDIUM STIMPSONI, Gill. (Plate XII. fig. 4.) Sicyopterus stimpsoni, Gill, Proc. Ac. Nat. Sc. Philad. 1860, p. 101 ; Bleeker, Arch. Neerl. ix. p. 313. Sicydium stimpsoni, Giinth. Cat. Fish. iii. p. 93 ; Guntb. Fische der Siidsee, p. 183. D. 6^. A. £. L. lat. 70. Teeth in the upper jaw tricuspid. A row of rather large tuberculous papillae on the gum beneath the upper lip, with a larger median papilla above the maxillary suture ; upper lip with deep median cleft and two round lateral notches below the nostrils ; maxillae at right angles to one another; horizontal teeth conspicuous. Head subquadrate, rather less than one fourth of the length of the body (without the caudal) ; width of the head rather greater than the height and two thirds of the length. The height of the body is more than one fifth of the length. The length of the pectoral is equal to the length of the head ; length of the caudal greater. The diameter of the eye is one sixth of the length of the head and one third of the interorbital space. Scales on the middle of the trunk very large, much larger than those on the neck, belly, anterior part of the body, and tail. The third and fourth dorsal spines are produced into filaments ; the third which is the longest, is more than twice the height of the body; second dorsal not so high as the body. Colour purplish, with from seven to ten darker cross bands ; caudal and base of dorsal and anal white-dotted. The largest specimen measures 3§ inches. • Hab. Honolulu; Hawaii. Four adult and half-grown specimens (types of S. nigrescens, juv.). 18. SICYDIUM CYNOCEPHALUM, C. & V. Gobio pinna ventrali subrotunda, §rc, Koelreuter, Nov. Comm. Petrop. ix. p. 428, pi. 9. fig. 3, 4. Sicydium cynocephalum, Cuv. & Val. xii. p. 177, ph 352 ; Bleeker, Batjan. ii. p. 201 ; et Natuurk. Tydschr. Ned. Ind. 1859, p. 156 ; Giinth. Cat. Fish. iii. p. 94. Sicydium lagocephalum (non Pall.), Bleeker, Natuurk. Tydschr. Ned. Ind. i. p. 250. Sicydium parvei (non Bleek.), Giinth. Cat. Fish. iii. p. 94. Sicyopterus cynocephalus, Bleeker, Versl. Ak. Amst. (2) ix. p. 275. D. 6_L_ A - • L. lat. 75-80. L. trans, ca. 17. 10-11* •"•' 10-11 Teeth in the upper jaw tricuspid. A row of small papillae on the gum beneath the upper lip, a small median papilla above the maxillary suture ; upper lip with a very slight median cleft ; maxillae contain an angle of about 60°; horizontal teeth conspicuous. The total length of the body (without the caudal) is four and a half times the length of the head ; the width of the head is rather |
