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26<br />
TYPE SPECIES.—Nomlandia californica Durham and Barnard,<br />
1952, by original designation.<br />
Nomlandia californica Durham and Barnard, 1952<br />
PLATE %g<br />
Nomlandia californica Durham and Barnard, 1952:91, pi. 12: fig. 53.—Wells,<br />
1956:F423.—Bythell, 1986, 19.—Cairns et al., 1991:47.<br />
REDESCRIPTION OF HOLOTYPE.—Coral lum discoidal and<br />
firmly attached (encrusting): 9.7 x 7.0 mm in calicular diameter<br />
and only 2.4 mm in height. Thecal wall and costae absent; outer<br />
edges of septa attenuate in height toward perimeter of basal<br />
plate. Septa hexamerally arranged in 4 complete cycles (48<br />
septa) according to formula: S1>S2>S3>S4. S1 extend to<br />
columella, the higher cycle septa progressively less wide. All<br />
septa semi-circular in shape (arched), the S, being the highest<br />
of the septa. Septal edges finely pleated corresponding to<br />
underlying trabeculae that are oriented perpendicular to septal<br />
edges. Closer to basal plate and toward columella the septa bear<br />
tall, elongate carinae oriented parallel to septal edges. A<br />
sinuous palus (P3) occurs in only one half-system, being absent<br />
from all other half-systems. Columella a single low, twisted<br />
lath, which is attached to the inner edges of the 6 Sv<br />
DISCUSSION.—This unusual species is known from only the<br />
holotype, collected from a sunken bouy off San Miguel Island,<br />
California. It does not resemble any North Pacific or any other<br />
previously described coral, justifying Durham and Barnard's<br />
creation of a new genus. Durham and Barnard (1952) suggested<br />
that Nomlandia was related to Bathycyathus, but its inconsistent<br />
presence of pali and lack of a thecal wall argue against that<br />
relation. Wells (1956) questioningly placed the genus in the<br />
Caryophylliinae. The holotype appears to be a mature<br />
specimen, not a juvenile stage of a larger, better-known species,<br />
but, until more specimens are collected, its range of variation<br />
and phylogenetic affinities remain enigmatic. Its encrustation<br />
of a sunken bouy suggests that it might have been transported<br />
a great distance, either alive or after death.<br />
MATERIAL EXAMINED.—New Records: None. Previous<br />
Records: Holotype.<br />
TYPE.—The holotype (Plate 8g) of N. californica is<br />
deposited at the SBMNH (35560) ex AHF 19. Type Locality:<br />
1.1 km off Richardson Point, San Miguel Island, Channel<br />
Islands, California; 82 m on a sunken bouy.<br />
DISTRIBUTION.—Known only from the type locality.<br />
DesmophyUum Ehrenberg, 1834<br />
DIAGNOSIS.—Solitary, trochoid, fixed. Septothecate. Pali<br />
absent; columella absent or quite rudimentary. Sparse endothecal<br />
dissepiments. Azooxanthellate.<br />
TYPE SPECIES.—Madrepora dianthus Esper, 1794, here<br />
designated. Milne Edwards and Haime (185Oa:xvii) have been<br />
cited as the authors to have subsequently designated DesmophyUum<br />
cristagalli Milne Edwards and Haime, 1848a, as the<br />
SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY<br />
type species of DesmophyUum, however this cannot be valid<br />
since D. cristagalli was not included as a species in the original<br />
description of the genus. In Ehrenberg's (1834:299) original<br />
description of DesmophyUum, he listed two species: "D.<br />
dianthus (= Madrepora dianthus Esper)" and D. stellaria sp.<br />
nov. Since the type species of a genus must originate from the<br />
species originally placed in that genus when it was established<br />
(ICZN Articles 67g and 69a), D. cristagalli cannot be<br />
considered as the type species, even if it is considered to be a<br />
junior synonym of the type species. In 1857, Milne Edwards<br />
and Haime made a distinction between the Red Sea specimens<br />
Ehrenberg called D. dianthus (having five cycles of septa) and<br />
the "East Indian" specimen (having six cycles of septa) that<br />
Esper called D. dianthus. This undoubtedly led Wells<br />
(1956:F426) to designate Ehrenberg's "D. dianthus (non<br />
Madrepora dianthus Esper)" as the type species of the genus.<br />
But, regardless of the specimens Ehrenberg had in hand at the<br />
Muse"e de Berlin (see Zibrowius, 1980:117), he clearly equated<br />
his D. dianthus to Esper's species, and thus the type of the<br />
genus cannot be D. dianthus sensu Ehrenberg, as implied by<br />
Wells (1956), but must be the original D. dianthus (Esper,<br />
1794). According to Zibrowius (1980:117), Ehrenberg's D.<br />
stellaria is a junior synonym of Balanophyllia europaea (Risso,<br />
1826). It is therefore appropriate (ICZN recommendation<br />
69B(3): choice by elimination) to designate the other species<br />
listed by Ehrenberg (1834) in his original generic account, M.<br />
dianthus Esper, 1794, as the type species of the genus.<br />
Esper's type of D. dianthus is lost (Scheer, 1990:406), and<br />
his description and illustrations leave room for doubt as to its<br />
identity, but it is known (Cairns, 1979, 1982) that D. cristagalli<br />
is a widespread and quite variable species, having five, six, or<br />
even more cycles of septa. It is quite likely that Esper's<br />
six-cycle D. dianthus from the "East Indies" was the same as<br />
Ehrenberg's five-cycle D. dianthus from the Red Sea, a species<br />
better known as D. cristagalli Milne Edwards and Haime,<br />
1848a. Even though the type of Esper's D. dianthus is lost, this<br />
name has nomenclatural priority as well as being the type<br />
species of the genus, and thus a neotype is chosen for this<br />
species: a specimen having six cycles of septa from Sagami<br />
Bay (Plate 9a,/?).<br />
DesmophyUum dianthus (Esper, 1794)<br />
PLATE 9a-d<br />
Madrepora dianthus Esper, 1794, pi. 69: figs. 1-3; 1795:85-86.—Scheer,<br />
1990:406.<br />
DesmophyUum dianthus.—Ehrenberg, 1834:299-300.—Milne Edwards and<br />
Haime, 1848a:254-255; 1857:77-78.—Yabe and Eguchi, 1942b:l 13-114,<br />
pi. 9: figs. 1-3.—Eguchi, 1965:290, 2 figs.; 1968:C41, pi. C33: fig. 6.<br />
DesmophyUum cristagalli Milne Edwards and Haime, 1848a:253, pi. 7: figs.<br />
10, 10a.—Marenzeller, 1904b:81.—Durham, 1947:36-37, pi. I: figs. 6, 10,<br />
15, 17; 1949:158-159, pi. 4: figs. 2, 4, 7, 8.—Durham and Barnard, 1952:<br />
86-87, pi. 11: fig. 48 [not Cartego Bay specimen].—Parker, 1964:150.—<br />
Talmadge, 1972:81, 2 figs.—Zibrowius, 1974a:758-761, pi. 3: figs. 1-10<br />
[synonymy]; 1980:117-121, pi. 61: figs. A-O; pi. 62: figs. A-M.—Cairns,<br />
1979:117-119, pi. 21: figs. 7, 8; pi. 22: fig. 8; 1982:29-30, pi. 8: figs. 9-12;