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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;

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