named in reference to the Australian distribution [details]
name calliopensis is derived from the type locality, the Calliope River. [details]
Often occurs in sheltered bay and estuarine situations where salinity levels are high, in muddy substrates and ... [details]
Estuarine in muddy sediments, salinity range from 6.53 p.p.t. to 37.94 p.p.t. (Warren et al. 1994) [details]
Associated with vermetid reef of Dendropoma [details]
Not mentioned in Warren et al (1994) as a possible Mediomastus. Yabe & Mawatari (1998) pointed out that their new ... [details]
Warren et al (1996: 245) suggests M cirripes is sufficiently incompletely known to be a species inquirenda, but ... [details]
Warren et al (1994) could not confirm existence of filamentous branchiae due to the condition of the type series [details]
Merimbula, seaward side of bridge, NSW, Australia, 36°54'S 149°53'E. The geolocation appears to be generic for ... [details]
Calliope River, Gladstone, Queensland, Australia, -24.0167° 150.9833° (24°01'S 150° 59'E). The geolocation ... [details]
coast at Shavei Zion, north of Haifa, Israel, 32.9833° 35.0833° (32°59'N 35°05'E) [details]
Known for a single specimen. Holotype is 3.3 mm and consists of an anterior end with a complete thorax and 6 ... [details]
There are no syntype specimens known. Warren et al. (1994) examined specimens said to be "Rasmussen's private ... [details]