GENUS GLOSSANODON GUICHENOT 



We have received material of GJossanodon jJoUi 

 from West Africa and five small fishes from the 

 Arabian Sea that represent a species close to but 

 distinct from G. polli. 



GLOSSANODON MILDRED AE, NEW SPECIES 



Figure 14 

 Diagnosis 



(r. mildredae differs from pygmaeus in having 

 its vent immediately anterior to the anal fin base 

 rather than farther forward, in having teeth on 

 the dentary, and in having 23 ratlier than 12 to 14 

 pectoral rays. It ditfei's from Jeiogloss-us and scmi- 

 fasciatus in having dentary teeth along more than 

 half tlie distance from the symphysis to the angle 

 of the gape. It differs from Jineatus in liaving 5 

 instead of 4 branchiostegal rays, 13 instead of 15 

 anal rays, and 23 instead of 20 pectoral rays. It 

 differs from polli in having at least 55 lateral line 

 scales rather than 48 to 51. Also, G. mildredae has 

 dusky blotches mainly alxjve the midline of the 

 body; in similar-sized polli, the ventral half of 

 the side bears continuations of the dorsal blotches. 

 Counts and Measurements 



See table 8. 

 Description 



Greatest depth behind head, tapering little to 

 caudal peduncle. The dorsal profile of the head 

 is slightly interrupted by the dorsal rim of the or- 

 bit. The ventral profile of the head rises more 

 abruptly from a point below the anterior margin 

 of the eye. The interorbital space between the su- 

 praocular canals is flat. 



The dorsal margin of the maxillary lies under 



the lachiymal and extends to the joint between 

 the lachi7mal and the jugal ; its distal end is closer 

 to the anterior margin of the orbit than to the 

 snout. Lower jaw projecting slightly; both jaws 

 are rounded, the lower less broadly. 



Table 8. — Counts and measuremenls in millimelers on type 

 specitnens of Glossanodon mildredae 



Holo- Para- 

 type type 

 USNM USNM 

 203235 203234 



Para- 

 type 



USNM 

 203234 



Para- 

 type 

 USNM 

 203234 



Para- 

 type 



USNM 

 203233 



Afeasurements: 



Standard length _ 



Preanal. 



Preventral 



PredorsaL_ 



Head length 



Snout 



Eye 



Maxillary length 



Maxillary width 



Body depth at dorsal-.. 

 Body width behhid 



head _ _ 



Caudal peduncle depth. 

 Counts: 



Dorsal fin rays 



Anal fin rays 



Pectoral fin rays 



Ventral fin rays _ _ 



Vertebrae. 



Gill rakers on lower 



arm first arch 



Lateral line scales 



Branchiostegal rays 



64.9 

 64.1 

 33.6 

 30.7 

 20.8 



6.2 



6.2 



6.3 



1.2 . 



7.1 . 



7.0 . 

 4.1 



13 

 13 

 23 

 13 

 51 



68.1 

 48.6 

 29.5 

 28.4 

 16.6 

 5.1 

 6.4 

 4.0 

 1.0 



6.3 

 3.8 



13 

 13 



56-1- 



12 

 50 



23 



12 



50 



23 



"i' 



65.7 

 63.6 

 34.1 

 31.3 

 19.2 



4.7 



6.4 



4.6 



1.2 . 



7.7 



6.5 

 4.2 



13 

 13 

 23 

 12 



51 



41.6 

 32.2 

 22.7 

 20.7 

 13.7 

 4.1 

 3.9 

 3.1 



6.4 



4.2 

 3.1 



23 

 13 

 49 



Each palatine bears 15 to 20 short, conical, 

 widely spaced teeth, arranged in an irregular 

 series. The head of the vomer has 10 to 12 similar 

 teetli. The tongue lacks teeth. About 10 teeth are 

 widely spaced in a single irregular row on each 

 dentary, extending from the symphysis to the 

 angle of the gape. The gill rakers are elongate, 

 lathlike structures and are closely spaced on the 

 gill arch. The longest rakers equal about one-half 

 the interorbital distance. 



Figure 14.~Glossatwdon mildredae, USNM 20323.5, holotype, &i.9 mm. standard length. Scales not shown. Drawn 



by Mildred H. Carrington. 



34 



U.S. FISH AND WILDLIFE SERVICE 



