Apogon robbyi Gilbert and Tyler

Baldwin, Carole C., Brito, Balam J., Smith, David G., Weigt, Lee A. & Escobar-Briones, Elva, 2011, Identification of early life-history stages of Caribbean Apogon (Perciformes: Apogonidae) through DNA Barcoding, Zootaxa 3133, pp. 1-36 : 26

publication ID

https://doi.org/ 10.5281/zenodo.279426

DOI

https://doi.org/10.5281/zenodo.5659177

persistent identifier

https://treatment.plazi.org/id/DA2C87A6-FFBE-FFB3-FF69-93E74068F80C

treatment provided by

Plazi

scientific name

Apogon robbyi Gilbert and Tyler
status

 

Apogon robbyi Gilbert and Tyler View in CoL

Identification. One adult specimen ( Fig. 32 View FIGURE 32 ), identified based on the presence of seven dusky stripes on the body ( Gilbert &Tyler, 1997; Gon 2002), served as the basis for genetic identification of two juveniles (Appendix 1).

Juveniles ( Fig. 33 View FIGURE 33 ). The juveniles (17.0 and 22.0 mm SL) have the distinctive body stripes of adults, but the stripes are orange and paler than the dusky stripes in adults and not apparent in preserved specimens. There is yellow pigment on the first and second dorsal fins and upper lobe of the caudal fin that roughly mirrors that on the pelvic, anal, and lower lobe of the caudal fin, respectively. There is a round basicaudal spot of melanophores and orange chromatophores that persists in preserved specimens as a well-defined, medially situated, dark blotch. The larger juvenile has 12 gill rakers on the lower limb.

Comparisons Among Juveniles. Juvenile A. robbyi can be separated from other known Apogon juveniles by the seven orange-colored stripes on body. It resembles young A. quadrisquamatus and A. mosavi in having chromatophores on the vertical and pelvic fins, but in A. robbyi this pigment is yellow vs. yellow and orange or all orange. As in A. quadrisquamatus and A. mosavi , the pigment on the dorsal fins and upper caudal lobe appears to mirror that on the pelvic and anal fins and lower lobe of the caudal fin. Modal numbers of gill rakers on the lower limb of the first arch are useful in separating juvenile A. robbyi (12–13) from A. mosavi (14–15) but not from A. quadrisquamatus and Apogon sp. 2 (13).

Kingdom

Animalia

Phylum

Chordata

Class

Actinopterygii

Order

Perciformes

Family

Apogonidae

Genus

Apogon

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF