Ingolfi ella moluccensis, a new species of ingolfi ellid amphipod (Ingolfi ellidae), is described 

from coarse coral sands of the Gura Ici islands (northern Moluccas; Indonesia). The species is unique among 

ingolfi ellideans in the display of a rounded outgrowth on the proximo-lateral margin of basis of P5, and of a 

sexually-dimorphic, modifi ed medial margin of coxa in the same limb. Other features point to close affi nities 

with a group of seven insular species that show a broad but punctuated distribution along the Atlantic and 

SW Pacifi c oceans. These species share the combined display of four denticles on the posterior margin of 

dactylus of G1 & G2; three comb rows of denticles on the medial margin of the protopod of U2; a trifi d 

unguis of P3–P4; and a bifi d unguis of P5–P7. The placement of ingolfi ellideans among the amphipods is 

briefl y discussed in relation to current analyses. An overview of all species of Ingolfi ella within a comparison 

of 12 characters is provided, including the eight new species described since 2003.