Comprehensive Description

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Gobiosoma robustum is a small, unscaled goby that is somewhat variable in coloration. The body typically bears several irregular, interconnected dark bands with pale spots that give a chain-like appearance. A distinctive series of dark dots and dashes occur along the mid-side (Robbins et al. 1986). The resemblance of these markings to a visual representation of Morse code gives the animal its common name. The outer row of teeth is enlarged in the upper and lower jaws (GRI undated). The body depth is typically 16-23% of standard length (Hoese and Moore 1977).Dawson (1966) notes the species typically possesses 9-11 anal rays, 11-13 second dorsal rays, and 15-17 pectoral rays. Robbins et al. (1986) cite the most common count as: 12 dorsal rays; 10 anal fin rays; 16-17 pectoral fin rays. The first dorsal typically has a spine count of VII and a pelvic spine and ray count of I, 5 (GRI undated).


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© Smithsonian Marine Station at Fort Pierce

Source: Indian River Lagoon Species Inventory

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