-
disc heart-shaped
snout long, with filamenttail thin, no Dspelvics: front lobe separate, = leg -
disc rhomboidal, corners angular
snout short, firm
head thornydisc: central row very large thorns - nape to Dtail short, stout -
disc heart-shaped, front edge undulating
snout flexible, short, bluntcentral row thorns: nape to Dpelvic: front lobe 65-85% rear lobe -
disk diamond shaped
snout triangular, no filamenttail thick, 2 Dspelvics: front lobe = leg -
snout long, concave sides, firm tip
pectoral rays separate from snoutwith Dscenter disc no thornspelvics: rear lobe largerbelly: pores dark -
disc heart-shaped, front edge undulating
snout tip flexible
pectoral rays nearly to snout tipC base width < eyeno pits at corners nasal curtainpelvic: front lobe 80-100% rear lobe -
disc wider than long, angular side tips
snout short, blunt, tip firmtail slender, long, +/- D
C = 2 unjoined lobespelvics = 1 triangular lobe -
snout tip firm, not long, sides straight to convexnape - triangular patches thornsC >15 central thorns before D1front pectoral rays not extending to ~snout tipsmall spots, some in rosettes
pectoral base - no ocelliunderside - pores not dark -
disc heart-shaped, front edges ~straight
snout pointed, tip firm
pectorals end before snout tiptail ~1/2 TL
no thorns on rear 1/3 tail -
disc heart-shaped, front edges undulating
snout short, round, tip flexible, pectorals almost to tiptop disc & tail: dense fine denticlesnasal curtain with pits in cornersfront pelvic lobe >80% rear lobe -
disc heart shaped
snout short, flexible, round + conical tipno Dspelvics = 1 wing-like, rounded lobe -
disc rhomboidal
snout tip stiff
eye thorns in half ringsdisc: top uniform color; bottom often darker
thorns: central row shoulder to tail, often with side rowstail =/> disc -
rhomboidal disc
snout broadly angular, tip firm, often extendedtop disc often no denticles
nape: no thorn triangle
center back: 1 row small thornspectorals: 1 pair ocelli
pores under disc not dark -
disc heart-shaped
snout long, with filamenttail thin, no Dspelvics: front lobe separate, = leg