60 PAPERS FROM TORTUGAS LABORATORY vol. xxxiv 



Color brown, with a light bar on each segment, every second to fourth more 

 distinct; five of the broader light lines before dorsal, two under, and eight or ten 

 behind it; a cuneiform light mark behind eye, with apex forward; eye with alter- 

 nating and radiating dark and pale lines. 



Breeding takes place at least in late June and July at Tortugas. W. H. L. 



Three specimens, 80, 88, and 94 mm. long, are included in the collection. 



The short, slightly upturned snout, contained 3.0 to 3.5 times in head; the 

 abruptly ending lateral keel on the last body ring or on the first caudal ring, and 

 the origin of the superior caudal keel above or slightly in advance of the end of 

 the lateral keel; the moderately short dorsal, with 22 to 25 rays, situated over 

 1 +6 or + 6 or 7 rings; the light crossbars; the light spot behind the eye; and 

 the radiating lines on the eye appear to characterize this species. 



The Lesser Antilles, Bermuda, and southern Florida. S. F. H. 



Syngnathus robertsi (Jordan and Rutter) 



Siphostoma robertsi Jordan and Rutter, Proc. Acad. Nat. Sci. Philadelphia, vol. 49, 1897, 



p. 97 — Jamaica. 

 Siphostoma elucens Evermann and Marsh (not of Poey), Bull. U. S. Fish Comm., vol. 20, 



pt. 1, 1900 (1902), p. 108 — Puerto Rico. 

 Syngnathus brachycephalus Jordan and Thompson (not of Poey), Bull. U. S. Bur. Fish., 



vol. 24, 1904 (1905), p. 235 — Tortugas, Florida. 

 Corythoichthys brederi Parr, Bull. Bingham Oceanog. Coll., vol. 3, art. 4, 1930, p. 30 — 



Cat Island, Bahamas. 

 Syngnathus pipulus Beebe and Tee- Van, Zoologica, vol. 13, 1932, p. 115 — Bermuda. 

 Syngnathus elucens Longley (not of Poey), Carnegie Inst. Wash. Year Book No. 31, 1932, 



p. 299; No. 32, 1933, p. 294. 



This pipefish was common, to the length of 150 mm., in turtle grass about 

 Long Key and Bird Key reef. Syngnathus floridae and Hippichthys brachy- 

 cephalus are its close associates. During the summer the males frequently have 

 eggs or embryos in their brood pouches, sometimes as many as 325, which are 

 arranged in as many as eight rows and are completely covered by the flaps of the 

 pouch, which overlap broadly. 



D. 20 to 24, on 1+4, rarely on l /i + 5 rings; body and caudal rings 16 to 18 

 -f- 31 to 34, most usually 17 -f- 32; brood pouch on 16 to 19 rings, usually 18 or 

 19. Keels well developed, and beaded; one on median line of snout, ending 

 abruptly between anterior margins of eyes, a median keel in three sections on 

 occiput and nape, one over each eye, one on anterior part of operculum, and one 

 on base of pectoral. Body ridges, exclusive of the mid-ventral one, sharp and 

 slightly rough. 



The following proportions are based on 6 specimens ranging in length from 

 115 to 140 mm.: Head 7.5 to 7.9; distance from tip of snout to vent 2.25 to 2.4; 

 depth 20 to 23; base of dorsal 11.3 to 12.3. Eye in head 6.5 to 8.5; snout 2.0 to 2.1 ; 

 depth 2.6 to 3.1 ; base of dorsal 1.4 to 1.55. Eye in snout 3.6 to 3.8. 



To permit comparison with the description of S. elucens by Poey, as which 

 this species has passed with some students, including myself, measurements in 



