Carapace having only one dark marginal line; pattern of black ocelli or spots; postocular and postlabial stripes usually not united
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6. Carapace having prominent ocelli, which are much larger near the center than at the sides
spinifer spinifer, [p. 489]
Carapace having numerous small, dark spots, sometimes small ocelli, which are not much larger near the center than the sides
spinifer hartwegi, [p. 497]
7. White spots on anterior third of carapace; white spots on carapace often surrounded by narrow blackish ocelli; small black dots sometimes interspersed among white spots
spinifer guadalupensis, [p. 517]
White spots absent on anterior third of carapace, or small and inconspicuous; white spots not surrounded by narrow blackish ocelli
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