The posterior end of the pectoral fin base forms 

 an angle of 35 to 40 degrees with the horizontal. 

 The tip of the pectoral fin extends at least one- 

 third of the distance from the pectoral fin origin 

 to the ventral fin origin. The ventral may be some- 

 what longer. The longest rays of the dorsal fin are 

 longer than body depth. 



Scales are lost from all four specimens; how- 

 ever, on the holotype we have been able to count 

 at least 55 scale pockets along the lateral line and 

 there are possibly 4 or 5 more. 



The peritoneum is dusky. The gut is immaculate. 

 The swimbladder lacks silvery pigment. Nine py- 

 loric caeca are present in a single specimen. 



The largest paratype (69.8 mm. standard 

 length) has gonads containing minute, transparent 

 eggs. We camiot say wheither this fish is an im- 

 mature female or a matui'e female with unripe 

 gonads. If tlie latter, then G. mildredae matures at 

 a smaller size than does G. polli. 



The body is straw-colored, with a narrow brown 

 band extending along the side above the midline. 

 Spaced along the band, and broader but less well 

 defined is a series of 8 to 10 dusky blotches, which 

 are less distinct anteriorly. The blotches extend 

 barely below the midline of the body. In our small- 

 est specimen (41.6 mm. s.l.) the blotches are made 

 of large, widely spaced chromatophores and the 

 lateral band is very indistinct. G. polJi of sizes 

 comparable with our mildredae specimens (See 

 fig. 8 in Cohen, 1958, taken from Poll, 1953, of a 

 specimen 8.3 cm., probably fork length. Also 

 USNM 203244, 61.5 mm. standard length and 

 USNM -203243, 65.8 mm. standard lengtli) have 

 blotches or bands over the ventral as well as the 

 dorsal half of the side. 

 Discussion 



G. mildredae is closest to G. poJll. from which it 

 is not easily distinguished. Unfortunately, our ma- 

 terial of G. mildredae is limited in quantity, size, 

 and quality, and we have but few specimens of 

 G. polli of comparable size. We doubt that one and 

 the same species of Glossanodon lives in the tropi- 

 cal western Indian Ocean and off tropical West 

 Africa, and we believe tliat at least the characters 

 in our diagnosis serve to indicate the existence of 

 two distinct populations. 



Distribution 



Known only from two localities in the tropical 

 western Indian Ocean. 



Name 



Named for Mildred H. Carrington, whose taste- 

 ful and accurate drawings have contributed 

 greatly to the progress of ichthyology. 



Study Material 



Holotype: USNM 203235, 64.9 mm. standard 

 length, Anton Bruiin cruise 9, sta. 422, 6°51' S., 

 39°54' E., 54 fm. (99 m.) ; 19 Nov. 1964; bottom 

 trawl. Paratypes: USNM 203234 (3 specimens); 

 data as for holotype. USNM 203233 (1) ; Anton 

 Bruun cruise 9, sta. 463, 11°24' N., 51°35' E., 41 to 

 95 fm. (75-174 m.), 17 Dec. 1964, bottom trawl. 



GLOSSANODON POLLI COHEN 



G. polli has not been recorded since its original 

 description (Cohen, 1958). We have examined the 

 18 recently collected specimens listed below and 

 find that they agi'ee well with the description. The 

 two Geronimo specimens listed below are juveniles 

 of 61.5 and 65.8 mm. standard lengths and show 

 the barred pattern illustrated in the original 

 description. 



Study Material 



USNM 203236 (12 specimens), MNHN (2), 

 MCZ (1), and FMNH (1); Guinean Trawling 

 Survey, La Rafale, transect 8, sta. 6, 8°28' N., 

 14°21' W., 55 fm. (100 m.). USNM 203244 (1), 

 Geronimo cruise 2, sta. 213, 2°31' S., 8°51' E., 110 

 fm. (201 m.). USNM 203243 {I), Geronimo cruise 

 2, sta. 214, 2°01' S., 8°50.5' E., 110 fm. (201 m.) 



LITERATURE CITED 



BuLLis, Harvey R., and John R. Thompson. 



1965. Collections by the exploratory fishing vessels 

 Oregon, Silver Bay, Cotribat, and Pelican made dur- 

 ing 1956-1960 in the southwestern North Atlantic. 

 U.S. Fish Wildl. Serv.. Spec. Sci. Rep. Fish. 510, 

 130 pp. 



Carvalho, ,T. Paiva. 



19.50. Resultados pientificos do cruzeiro do "Bae- 



pendi'' e do "Vega" Ji I. da Trindade, Bol. Inst. 



Paulista Oceanogr. 1 : 97-133. 

 Chin, Edwabd. 



1966. Cruise report, re.search vessel Anton Bruun, 

 cruise 16. Texas A M Univ. Mar. Lab., Spec. Rep. 

 6, 36 pp. 4- 10 appendices. [Processed report, 

 Texas A M Univ. Mar. Lab., Galveston, Tex.] 



Cohen, Daniel M. 



19.58. A revision of the fishes of tlie subfamily Ar- 



gentininae. Bull. Fla. State Mus. 3(3) : 93-173. 

 1961. On the identity of tlie species of the fish genus 



Argentina in the Indian Ocean. Galathea Rep. 5: 



19-21. 



ADDITIONS TO A REVISION OF ARGENTININE FISHES 



35 



