Apoprionospio pygmaea (Hartman, 1961)

Prionospio pygmaeus Hartman, 1961: 93 –94. Hartman, 1969: 163 –164, figs 1–3. Apoprionospio pygmaea (Hartman, 1961) .— Foster, 1971a: 94 –97, figs 213–225.— Maciolek, 1985: 369 –370, fig. 17.— Gobin, 1990: 43.

Prionospio (Apoprionospio) pygmaea .— Johnson, 1984: 6.61–6.63, figs 6.51–6.52.

Type locality. California. North Pacific Ocean, Los Angeles County, Long Beach, USA, 6 km from Long Beach breakwater light, (33°40'00"N, 118°05'08"W), 21.94 m, hard packed grey sand.

Type material. Holotype (LACM-AHF POLY 618), paratype (LACM-AHF POLY 619).

Records. USA: off Texas, 15–22 m, fine sand, silty sand, sandy silty clay (Johnson 1984). Tampa Bay, Florida; Seahorse Key, Florida; Port Aransas, Texas; Panama City Beach, (Foster 1971a). Trinidad and Tobago: Oropuche, (Gobin 1990).

Remarks. The original description by Hartman (1961) is vague and without illustrations. Foster (1971a), reexamined the types of Prionospio pygmaeus, and found that hooded hooks actually have several small teeth above the main tooth, rather than the bidentate structure originally described by Hartman (1961). Additional data, perhaps molecular or reproductive biology, are required to verify if A. pygmaeus and A. dayi are the same species.