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Gobiida

specimens, obtained, eye, indicate and length

GOBIIDA.

Stadium antillarnm Ogilvie-Grant.

Several specimens, 5 to 12 cm. long, obtained from mountain streams flow ing into the Arecibo River in the vicinity of Utuado. Only one specimen corresponds to the description of the type; 12 other specimens of this genus were obtained; these vary enough to indicate 6 different species. However, careful comparisons would indicate that much of this variation is individual and not specific. For example, microscopic examinations indicate that the filamentous character of the spinous dorsal is sexual and not specific. Two male specimens of what appeared to be S. caguitce had the dorsal filaments, while three females did not possess this character. The scales in the 12 individuals varied from 53 to 84. Young individuals show fewer scales than older ones.

Color in life varied from almost pure white to blue black. Mr. M. H. Sanborn invited my attention to examples of this genus which were almost pure white, found in small mountain streams flowing from caves. Several specimens of this beautiful little fish, 2 to 3 inches in length, were observed by the writer and one specimen was obtained. Observations would indicate that this is a breeding female of possibly a new species. The morphological characters, however, do not warrant making a new species until other indi viduals of both sexes can be obtained, as well as specimens taken at different seasons of the year.

Several individuals showing the color markings of

S. plumieri were obtained. They do not show the emarginate caudal nor the large number of scales. They are probably the young of S. antillerum.

The writer is of the opinion that

S. vincente Jordan and Evermann is the

young of S. plumieri (Bloch).

The fin rays and the vertebra were constant in all specimens.

Dorsal VII, 11. Anal 11. Vertebra 26a 10+16.

Goblosoma viridWdatum sp. nor. Plate 3, fig. 3.

Gobius linealus Poey, Mem., II, 424, 1861, Cuba. Preoccupied by Gobius lineatus Jenyne.

Head 3.4 to base of caudal, 4.2 in total length; depth 5 in total length.. Dorsal VII—I, 11; anal 10; ventral 6. Snout same as eye; eye 4 in head; inter orbital space about 3.5 in head. Gills 4; pseudobranch present. Nostrils double, well separated. Anterior nostril in tube above upper lip; posterior in very short tube in front of upper third of eye; upper lip large. Bran chiostegals 3. Vertebra 11 + 16? A few large open pores on head, large one behind eye. A series of very minute barbel-like organs following course of under jaw extending back to ventral surface of opercle.

Body with 20 well-defined vertical brilliant green bars, edged with darker, and separated by 21 narrower yellowish-white bars. A brilliant red band extends from tip of snout through eye to above gill-opening. Bars and bands fade to brown and white in sprits.

Obtained from branches of dead coral east of entrance to Guanica Harbor. Type, No. 3079, Zoological Museum, Princeton University. Length, 23 mm. Paratype, 19 mm., No. 3126, Zoological Museum, Princeton University. This is undoubtedly the species described by Poey under the name of Gobius lineatus, from Cuba. It is quite distinct from Gobiosoma multifasciatum of Steindachner and for this reason is here described and named.