Key to species of Heterotanoides

1. Pereopods 4–5 propodus with one superodistal spine.......................................................... 2

- Pereopods 4–5 propodus with three superodistal spines........................................................ 4

2 Antennule article-3 with two subdistal aesthetasc bundles.................................. .. H. meridionalis [female]

- Antennule article-3 with subapical aesthetasc and three subterminal aesthetasc bundles.............................. 3

3 Pereopod-1 basis longer than ischium, merus and carpus combined............................. H. meridionalis [male]

- Pereopod-1 basis as long as ischium, merus and carpus combined................................. H. ornatus [male?]

4. Antennule article-3 with two subterminal aesthetasc bundles; antenna article-2 slightly larger than article-3................................................................................................... H. capensis [female]

- Antennule article-3 with one or two subterminal aesthetasc bundles; antenna article-2 at least twice as large as article-3.... 5

5. Antennule article-3 with one subterminal aesthetasc bundle in both male and female (one aesthetasc in female); pleonite epim- era with simple setae.......................................................................... H. cognatus

- Antennule article-3 with one subterminal aesthetasc in female and two bundles [one basal in male]; pleonite epimera with sim- ple and sensory setae...................................................................... H. muimui n. sp.