24 Papers from the Department of Marine Biology. 



Gobiosoma Tiridistriatum sp. nov. Plate 3, fig. 3. 



Gobius lineatns Poey, Mem., II, 424, 1861, Cuba. Preoccupied by Gohius linealus 

 Jenyns. 



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. Vertebrse 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 spirits. 



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 Gohius 

 lineatus, from Cuba. It is quite distinct from Gobiosoma muUifasciatum of 

 Steindachner and for this reason is here described and named. 



GOBIESOCID^. 

 Gobiesox cerasinus Cope. 



Quite common around coral reefs in vicinity of Guanica Harbor. Usually 

 hidden in crevices of rocks. 



BLENNIID^. 



Alticus macclurei sp. nov. Plate 3, fig. 2. 



Head 4.2; depth 4.3. Dorsal XII, 20; anal 23. Head shghtly longer than 

 deep; anterior profile vertical, slightly concave. Eye 3.25 in head. Pecto- 

 rals reach to vent or beyond in male, not quite to vent in female. Ventrals 

 1.5 in head. Upper lip of male large; teeth pectinate; canines large; fringe 

 around upper and lower lips; upper lip pigmented, lower not pigmented in 

 spirit specimens, yellow in life. Supraocular tentacles slender; large ten- 

 tacle medial to each anterior nostril, which divides into 5 or 6 tentacles; two 

 nuchal tentacles in male, smaller in female. Numerous large pores on head, 

 one group behind and below eye, another on supraopercular region. Dorsal 

 fin entire, extending from nape to caudal; last dorsal ray bound down for 

 two-thirds of its length; last anal ray free. Last dorsal and last anal rays 

 small; do not show except in radiograph. 



Differs generally from A. atlanticus in coloration. General color brownish, 

 livid purplish on costal region; j&laments above eyes and edges of lips bright 

 orange. Iris slaty. Dorsal oHve-greenish with median dusky lengthwise 

 band anteriorly, contrasting strongly with whitish or pale upper half of fin, 

 but sloping up behind so that edge of dorsal is dusky posteriorly. Upper 

 front edge of dorsal broadly orange below, with submargLnal area of whitish. 

 Caudal olivaceous, dusky medially, grayish below, yellowish above; anal dark 

 neutral tint, edge blackish; pectoral pale orange, red on lower half; ventral 

 pale. Vertebree 12+22. 



Two specimens from dead coral reef west of Guanica Harbor. 



Type, No. 3081, Zoological Museum, Princeton University; 5.5 cm. long. 



Paratype, No. 3027, Zoological Museum, Princeton University; 5 cm. long. 



Named for Professor C. F. W. McClure, for his researches upon the lym- 

 phatics of fishes. 



