Shiinoidae is a family

Family (biology)

In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 of parasitic

Parasitism

Parasitism is a type of symbiotic relationship between organisms of different species where one organism, the parasite, benefits at the expense of the other, the host. Traditionally parasite referred to organisms with lifestages that needed more than one host . These are now called macroparasites...

 copepod

Copepod

Copepods are a group of small crustaceans found in the sea and nearly every freshwater habitat. Some species are planktonic , some are benthic , and some continental species may live in limno-terrestrial habitats and other wet terrestrial places, such as swamps, under leaf fall in wet forests,...

s. The first species in the family to be described was Shiinoa occlusa, a single immature female of which was discovered on the fish Scomberomorus commerson

Narrow-barred Spanish mackerel

Scomberomorus commerson, is a mackerel of the Scombridae family. It is found in a wide ranging area centering in South-east Asia but as far west as the east coast of Africa and from the Middle East and along the northern coastal areas of the Indian Ocean, and as far east as Fiji in the South West...

, and described by Kabata in 1968. A second species, S. inauris, was found on Scomberomorus regalis

Cero mackerel

The Cero mackerel, Scomberomorus regalis, is similar in appearance and coloration to the Atlantic Spanish mackerel, Scomberomorus maculatus except that the Cero has a longitudinal stripe in addition to the spots of the Spanish....

and described by Roger Cressey in 1975, who also erected the family to hold the genus Shiinoa alone. A second genus was added in 1986, containing the single species Parashiinoa mackayi, which had been found on the fishes Pomadasys maculatus and P. argenteus. Nine species are now recognised in the two genera:
Shiinoa Kabata, 1968

• Shiinoa elagata Cressey, 1976
• Shiinoa inauris Cressey, 1975
• Shiinoa japonica Izawa, 2009
• Shiinoa occlusa Kabata, 1968
• Shiinoa prionura Izawa, 2009
• Shiinoa rostrata Balaraman, Prabha & Pillai, 1984

Parashiinoa West, 1986

• Parashiinoa bakeri (Cressey & Cressey, 1986)
• Parashiinoa cookeola Izawa, 2009
• Parashiinoa mackayi West, 1986