Anisakis physeteris Baylis, 1923

Nagasawa, K. & Moravec, F., 2002, Larval anisakid nematodes from four species of squid (Cephalopoda: Teuthoidea) from the central and western North Paci ® c Ocean, Journal of Natural History 36 (8), pp. 883-891: 886-887

publication ID

http://doi.org/ 10.1080/00222930110051752

persistent identifier

http://treatment.plazi.org/id/BA2C87B6-FFCE-FFF1-0CB0-FC18FDA9D605

treatment provided by

Felipe

scientific name

Anisakis physeteris Baylis, 1923
status

 

Anisakis physeteris Baylis, 1923  

(®gure 2)

Third-stage larva (one specimen). Body 24 860 long and 597 wide; cuticle with ®ne transverse striae. Cephalic end rounded, with prominent ventral cuticular tooth; latter 14 long, ventrally bent, with rounded tip. Anlagen of lips weakly developed. Oesophagus almost cylindrical, muscular, 2270 long. Ventriculus 505 long and 287 wide, its posterior end shaped transversely to longitudinal axis of body. Excretory pore situated below ventral cephalic tooth. Intestine straight . Rectum short, hyaline; three small round unicellular rectal glands present. Tail conical, 304 long, with rounded tip; caudal spike absent   .

Host. Onychoteuthis borealijaponica Okada, 1927   ( Onychoteuthidae   ).

Site   of infection. Stomach wall.

Locality. Central North Paci®c Ocean (43ss39¾N, 179ss30¾W, 23 June 1993).

Voucher specimen deposited. Institute of Parasitology, ASCR, C Ïeske BudeÏjovice (Cat. No. N-705).

Comments

Anisakis physeteris   third-stage larva diOEers from that of the foregoing species ( A. simplex   ) principally in a much shorter ventriculus, the posterior end of which is shaped transversely to the longitudinal axis of body (oblique in A. simplex   , see Oshima, 1972). Larvae of this species have been reported from squid species Todarodes japonicus   , Loligo (Doryteuthis) bleekeri Keferstein   and Ommastrephes bartramii   from the western North Paci®c by Kato et al. (1968) (as Anisakis   Type II larvae), Bagrov (1982) and Kurochkin and Solov’eva (1982).

Anisakis physeteris   parasitizes in adulthood mainly the sperm whale ( Physeter catodon   ) ( Davey, 1971). Conspeci®c third-stage larvae are known to occur in marine ®shes and squids ( Oshima, 1972).

Kingdom

Animalia

Phylum

Nematoda

Class

Secernentea

Order

Ascaridida

Family

Anisakidae

Genus

Anisakis

Loc

Anisakis physeteris Baylis, 1923

Nagasawa, K. & Moravec, F. 2002
2002
Loc

Anisakis physeteris

Baylis 1923
1923
Loc

Anisakis physeteris

Baylis 1923
1923
Loc

Loligo (Doryteuthis) bleekeri

Keferstein 1866
1866