768 Bulletin 47, Unired States National Museum. 



1123. SIPHOSTOMA ELUCENS (Poey). 



Very close to S. pelagicum, but with 24 or 25 dorsal rays. Head 7i in 

 total length. Snout 2 in head. Rings 16 or 17 + 33 or 34. Dorsal 24 or 

 25, on 2 -f- 4, sometimes on H + 4 rings. Grayish brown, a silvery bar 

 on each ring ; dorsal with black streaks. (Poey.) Cuba ; not rare ; prob- 

 ably identical with S. rousseau] both species closely related to S. pelagicum. 

 (elucens, shining out.) 



Syngnathus elucem, POEY, Synopsis, 443, 1867, Havana. 

 Syngnathus flavirostris,* POEY, Eumeratio, 178, 1875, Havana. 

 Syngnathus picturatusrf POEY, Eumeratio, 178, 1875, Havana. 

 Syngnathus linea,% POEY, Eumeratio, 178, 1875, Havana. 

 Syngnathus marmoreus,^ POEY, Eumeratio, 178, 1875, Havana. 

 Syngnathus ascendens, j| POEY, Eumeratio, 179, 1875, Havana. 



1124, SIPHOSTOMA JONESI (Gunther). 



Rings 17 + 32. Dorsal 18, on 1 + 5 rings. Head and snout short, the 

 latter somewhat bent upward, shorter than the postorbital portion of 

 head, keeled above, but without spines in the median line. Interorbital 

 space concave, crown and occiput with a median keel. Keels of body 

 sharp, but not spiny ; the lateral keel of the trunk passes into the 

 lower keel of the tail ; a ridge runs across the opercle but does not reach 

 its end ; tail twice as long as the trunk without head ; caudal very short. 

 Blackish brown; upper half of trunk with three, upper half of tail with 

 seven equidistant white cross bands. (Gunther.) Bermuda Islands. 

 (Named for John Matthew Jones, an English naturalist, resident at 

 Bermuda.) 

 Syngnathus jonesi, GUNTHEK, Ann. and Mag. Nat. Hist., Series 4, xiv,8, 1874, Bermudas. 



* Siphostoma flavirosire (POEY): 



Dorsal 25, on 1% + 4% rings ; rings 17 + 33. Head 8 in total length, snout nearly as long 

 as rest of head ; lateral line interrupted. Head yellowish, without black specks. Dorsal with 

 bands; a silver streak along lower part of side. One specimen, from Havana. (Poey.) 



f Siphostoma picturatum (PoET) : 



Head 7% in total length, half as long as trunk. Snout nearly as long as rest of head. 

 Nasal crest evident. Opercle sculptured like a mussel shell. Black, with a shining vertical band 

 on each ring. Snout with alternate bands of black and green. Dorsal with black streaks. 

 One individual, from Havana. (Poey.) 



I Siphostoma linea (POEY): 



Rings 16 + 33. Head 7% total. D. 25. Body very slender, depth 3% in head. Snout as 

 long as rest of head. Dorsal on 1% + 4% rings. Yellowish brown, with paler markings. 

 Head with light and dark spots. Dorsal with oblique lines. Two specimens from Havana. 

 (Poey.) 



Siphostoma marmoreum (POEY) : 



Rings 16 -f 33. D. 24, on % + 4 rings. Head 7% in total, depth 3 in head. Snout very 

 slightly shorter than rest of head. No postorbital crest. Color ashy, with two pale spots on 

 middle of each segment. Dorsal unmarked. Snout marked with white and ashy. Havana. 

 (Poey.) 



|| Siphostoma ascendens (POEY) : 



Rings 16 + 33. D. on 1^ + 4 rings. Head 7 in total length. Lateral line not interrupted. 

 Snout as long as rest of head. No postorbital crest. Brownish yellow; faint vertical streak on 

 each ring, most distinctly anteriorly. Snout with pale bands. One specimen from Havana. 

 (Poey.) 



