CATALOG OF ORIGINAL DESCRIPTIONS: Lamprocyclas maritalis polypora Nigrini 1967

This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.


Higher levels: rads_cat -> L -> Lamprocyclas -> Lamprocyclas maritalis polypora
Other pages this level: L. bajaderae, L. deflorata, L. dentata, L. hadros, L. heteroporos, L. inexpectata, L. intermedia, L. maritalis, L. maritalis antiqua, L. maritalis maritalis, L. maritalis polypora, L. maritalis teraphimis, L. maritalis ventricosa, L. matakohe, L. nuptialis, L. particollis, L. prionotocodon, L. reginae, L. saltatricis

Lamprocyclas maritalis polypora

Citation: Lamprocyclas maritalis polypora Nigrini 1967
Rank: sub-species
Type specimens: pl.7, fig.6
Type repository: (Illustrated specimen ) Sedgwick Museum N°. 850.2, U.K.
Described on page(s) : p.74
Family (traditional): Pterocorythidae
Family (modern): Pterocorythidae

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Current identification/main database link: Lamprocyclas maritalis polypora Nigrini 1967


Original Description
Description.—Similar to Lamprocyclas maritalis maritalis (p. 74), but with a greater number abdominal pores (11-14 on a half-equator, 4-6 in a vertical series), and shell usually thinner-walled and more delicate. Abdomen tends to expand a little distally, thus becoming truncate conical rather than cylindrical. Dimensions.—Total length (excluding apical horn) 128-164/«,. Length of cephalis 27-36p,; of thorax 45-63/«.; of abdomen (excluding peristome) 45-72/t. Maximum breadth of thorax 81—100/«.; of abdomen 119-136/1. Indian Ocean occurrences (fig. 40).—L. maritalis polypora is rare in both low and middle latitudes, occurring in somewhat greater numbers (up to 4% of the described population) in the former (but see discussion below). Holotype: MSN 39G, A-J41/1; Sedgwick Museum No. 846.4. Discussion.—Distinctions between L. maritalis maritalis and L. maritalis poly- pora might seem rather artificial, but they form a useful division insofar as there seems to be a correlation of the two forms with latitude. Both subspecies are found in low and middle latitudes, but in middle latitudes L. maritalis maritalis is fairly abundant and L. maritalis polypora is rare, and in low latitudes both subspecies are rather rare but L. maritalis polypora is relatively more abundant.

Editors' Notes
Occurrences previously recorded. -Haeckel (1887) - Central Pacific, "Challenger" Station 272 (3°48’ S., 152°56’ W., 4,755 m). Haecker (1907) - Deutsche Tiefsee-Expedition, Stations 227 (2°57’ N., 67°59’ E., 600-400 m), 229 (2°39’ N., 63°38’ E., 1,600-1,400 m), 237 (4°45’ S., 48°59’ E., 4,950-4,600 m). Haecker (1908) - Deutsche Tiefsee-Expedition Stations 237 (4°45’ S., 48°59’ E., 4,950-4,600 m), 239 (5°39’ S., 43°39’ E., 40-25 m), 268 (9°01’ N. to 12°18’ N., 53°31’ E. to 50°56’ E., 4,800-4,200 m). Hays (1965, fig. 10) -"Its occurrence seems to be restricted to the cores in the warmest waters" north of the South Polar Front; at depth in cores V16-66 (42°39’ S., 45°40’ E., 2,996 m), V17-88 (57°02’ S., 74°29’ W., 4,064 m).
Indian Ocean occurrences (fig. 39) .- L. maritalis maritalis is very sparsely distributed in low latitudes, but is fairly abundant (3% to 9% of the described population) south of 35° S (cf. L. maritalis polypora, discussion, p.77).

References:

Haeckel, E (1887). Report on the Radiolaria collected by H.M.S. Challenger during the years 1873-1876. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the year 1873-1876, Zoology. 18: 1-1803. gs

Haecker, V (1907). Altertumliche Spharelliden und Cyrtellarien aus grossen Meerestiefen. Archiv für Protistenkunde. 10: 114-126. gs

Nigrini, C. A. (1967). Radiolaria in pelagic sediments from the Indian and Atlantic Oceans. Bulletin of the Scripps Institution of Oceanography. 11: 1-125. gs


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Lamprocyclas maritalis polypora compiled by the radiolaria@mikrotax project team viewed: 11-4-2021

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