Harrimania Ritter, 1900

Deland, C., Cameron, C. B., Rao, K. P., Ritter, W. E. & Bullock, T. H., 2010, A taxonomic revision of the family Harrimaniidae (Hemichordata: Enteropneusta) with descriptions of seven species from the Eastern Pacific, Zootaxa 2408 (1), pp. 1-30 : 5

publication ID	https://doi.org/10.11646/zootaxa.2408.1.1
publication LSID	lsid:zoobank.org:pub:9BBB84BB-239C-41EA-9CFC-682449F96281
persistent identifier	https://treatment.plazi.org/id/101A87CA-FF83-FFAA-DBA6-FDAEF846FBE3
treatment provided by	Felipe (2021-08-22 22:04:55, last updated by Plazi 2023-11-04 10:25:03)
scientific name	Harrimania Ritter, 1900
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Genus Harrimania Ritter, 1900 View in CoL

Type species. Harrimania maculosa Ritter, 1900 View in CoL

Diagnosis. Proboscis conical, a little longer than broad; collar broader than long. Longitudinal muscles of proboscis arranged in radial plates ( Fig. 1 B View FIGURE 1 ). Genus often characterized by two proboscis pores. Intestinal pores and peribuccal cavities absent. Cornua very long, extending into trunk in H. maculosa Ritter, 1900 and H. planktophilus Cameron, 2002 , also forming parabuccal ridges on either side of buccal cavity in collar. Both dorsal and lateral gonads can be present, occurring as simple sacs arranged in long rows. Dorsal gonads, when present, confined to branchial region.

Remarks. Three species from this genus are currently described, two of which are from the Eastern Pacific region, H. maculosa and H. planktophilus . Based on the diagnosis given above, we should now reassign Saccoglossus borealis Okuda & Yamada, 1955 to this genus because of its great resemblance to H. planktophilus in having a radial proboscis musculature, a broad collar, a left proboscis pore, lateral gonads, parabuccal ridges and the absence of peribuccal cavities.

References

Cameron, C. B. (2002) The anatomy, life habits, and later development of a new species of enteropneust, Harrimania planktophilus (Hemichordata: Harrimaniidae) from Barkley Sound. Biological Bulletin, 202, 182 - 191.

Okuda, S. & Yamada, M. (1955) The fauna of Akkeshi Bay XXIII. Enteropneusta. Publications from the Akkeshi Marine Biological Station, 6, 1 - 7.

Ritter, W. E. (1900) Papers from the Harriman Alaska Expedition. II. Harrimania maculosa, a new genus and species of Enteropneusta from Alaska, with special regard to the character of its notochord. Proceedings of the Washington Academy of Sciences, 2, 111 - 132.

Figures

FIGURE 1. Light micrographs of transverse sections of the proboscis of: A, Saccoglosus pusillus, showing the arrangement of the proboscis longitudinal musculature in concentric rings. B, Protoglossus mackiei n. sp., showing the arrangement of the proboscis longitudinal musculature in radial plates. C, Mesoglossus macginitiei n. gen. et n. sp., showing the diffuse arrangement of the proboscis longitudinal musculature. Abbreviations: plm, proboscis longitudinal muscles. Scale bars = 500 µm.