I. pygmaeus weighs 0.00033 g upon hatching and increases in weight to 0.175 g as it reaches maturity in 50 days (1260 degree days). It inhabits waters at a temperature of 25.2 °C. Growth rate has been calculated as 12.55 and physiological growth rate as 0.498.[5]
^
abReid, A. 2005. Family Idiosepiidae. In: P. Jereb & C.F.E. Roper, eds. Cephalopods of the world. An annotated and illustrated catalogue of species known to date. Volume 1. Chambered nautiluses and sepioids (Nautilidae, Sepiidae, Sepiolidae, Sepiadariidae, Idiosepiidae and Spirulidae). FAO Species Catalogue for Fishery Purposes. No. 4, Vol. 1. Rome, FAO. pp. 208–210.
^Jackson, G.D. 1988. The Use of Statolith Microstructures to Analyze Life-history Events in the Small Tropical Cephalopod Idiosepius pygmaeus. Fishery Bulletin (U.S.) 87: 265-272.
Jackson, G.D. 1989. The use of statolith microstructures to analyze life-history events in the small tropical cephalopod Idiosepius pygmaeus. Fishery Bulletin87: 265-272.
Jackson, G.D. 1992. Seasonal variation in reproductive investment in the tropical Loliginid squid Loligo chinensis and the small tropical Sepioid Idiosepius pygmaeus. Fishery Bulletin91: 260-270.
Jackson, G.D. 1992. Seasonal abundance of the small tropical Sepioid Idiosepius pygmaeus (Cephalopoda: Idiosepiidae) at two localities off Townsville, north Queensland Australia. The Veliger35(4): 396-401.
Moynihan, M. 1983. Notes on the behavior of Idiosepius pygmaeus (Cephalopoda; Idiosepiidae). Behaviour85: 42-57.
Sasaki, M. 1923. On an adhering habit of a pygmy cuttlefish, Idiosepius pygmaeus Steenstrup. Annotationes Zoolodicae Japanenses10(21): 209-213.