H. CLARK, AUSTIN

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THE CRINOIDS OF THE BUlTENZORG MUSEUM.ByAUSTIN H. CLARK(0. S. National Museum).The director of the Buitenzorg Museum has recently been so very kindas to submit to me for study the collection of comatulids belonging to thatinstitution and to the Laboratory for Marine investigations at Batavia.Nearly all the specimens included in the collection are from the watersabout Sumatra, Java and southern Borneo, a particularly interesting regionon which we have as yet relatively little information.The collection includes representatives of 24 species. Although none ofthese species are new, several of the locality records and a number of theindividual specimens are of very considerable interest.Crossometra helius was previously known only from the five specimenscollected by the "Siboga" in the Kei Islands. Dichromeira ienuicirra was,.heretofore only known from the twenty-six individuals dredged by the "Sibo-ga" between Borneo and eastern Java. Capillaster macrobrachius was pre-viously only known from the type specimen from the China Sea and anotherdredged by the "Siboga" on the Borneo Bank.The large specimen of Capillasier multiradiata from St. Nicolaas Baywith only ten arms is worthy of note. The collection includes no less thanfifty-five specimens of Craspedometra acuticirra of which previously onlyeleven have been recorded, nine of which I have personally examined.The additional records for Asterometra miriiica and Pterometra pulcher-rima are of much interest.The specimen of Comatula pectinata from off Flat Hook, Borneo,with 18 arms has the largest number of arms of any individual of this speciesyet found, and is the only one possessing a IIIBr series. One example with17 arms has been recorded from Singapore, and another with 17 arms isknown from the Java Sea north of western Java. All three of these specimensare undergoing adolescent autotomy.Two of the eleven specimens of Amphimetra molleri in the collection have11 arms, a single HBr 2 series being present in .each case. Heretofore thegenus Amphimetra was supposed to include exclusively lO-armed forms. It isa somewhat anomalous type, and the OCCurrence in individuals with morethan 10 arms of HBr 2 series instead of HBr 4 (3 + 4) series as would beexpected in a genus of the family Himerometridce emphasizes its peculiarities.,.•208 TREUBIAVOL. XIV, LIVR. 2.The genus Pontiometra is herein placed in the family Colobometridce onthe basis of the paired dorsal spines on the earlier cirrus segments. The familyColobometridce includes a rather heterogeneous assemblage of genera whichshare in common only the lateral broadening of the dorsal processes of theearlier, or all, the cirrus segments, which form transverse ridges or paired ortripled spines. Since this feature is especially characteristic of the genusPontiometra there is no reason for not including it in this family.Of ·the 24 species represented in the present collection all but three -Craspedometra acuiicirra, Heterometra pulchra and Amphimetra molleri -were included in the extensive collections made by the "Siboga", and theirsynonymy will be found in the' author's report on the unstalked crinoids ofthe "Siboga" Expedition (Livr. 'LXXXIII, March 1918), in which the synonymyof Amphimetra molleri also is included. Heterometra pulchra was describedin the author's memoir on the crinoids of the Indian Ocean (Echinoderma ofthe Indian Museum, Part VII, Crinoidea, Calcutta, November 22,1912), p. 317,and the synonymy of Craspedometra acuticirra will be found on p. 117 of thesame memoir.Detailed accounts of all the known species of Comasteridce, to whichfamily half of the species included in the present collection belong, are givenin the author's recent monograph of that group (Bulletin 82, United StatesNational Museum, vo!. 1, Part 3, pp. i-vii, 1 - 816; 82 plates; Washington,D. C., March 21, 1931). In this njemoir are included keys to all the sub-families and higher groups of comatulids, as 'well as to all the genera andspecies of Comasteridce.Superfamily Comasterida.Family ·COMASTERIDA.Subfamily Cap ill a s t e r i n a e.Comatella nigra (P. H. CARPENTER).Locality. - Near Cape Dato, Madura (off the eastern end of Java) (lat.7° 33' S., long. 113° 37' E.); November 7, 1908 (Gier 13, Exp. 3). Onespecimen.Comatella stelligera (P. H. CARPENTER).Locality. - Dobo, northern side of the islet of Wamma, Aru Islands(lat. 5° 45' S., long. 134° 20' E.); February, 1908. One specimen.Notes. - The specimen has 47 arms; the cirri have 18 - 21 segments.Capillaster macrobrachius (HARTLAUB).Locality. - Java Sea, northnortheast of Indramayu Point, Java (lat.,.•AUSTIN H.CLARK, Crinoids. 20940 55' S., long. 108° 56' E.); October 23, 1907 (Gier 3, Exp. 20). Onespecimen.Notes. - There are 28 + arms. Of the seven IIBr series present fiveare 4 (3 + 4) and two are 2. Of the ten IIIBr series present eight are 3(2 + 3), one is4 (1 + 2,3 + 4), and one is 2. There is a single IVBr 3(2 + 3) series. 'Capillaster muliiradiata (LINNE).Localities. Great Kei, Kei Islands; March 4, 1928 (van Ledelholl,No. 53). One specimen.Northwest of Rembang, Java (lat. 5° 39' S., long. 1110 19' E.); October19, 1908 (Gier 12, Exp. 14). One specimen.North of central Java (lat. 50 41' S., long. 1090 21' E.); November 21,1907 (Gier 4, Exp. 10). Two specimens.Nassi Besar, northern end of Sumatra; 9 meters; otter trawl; June 3,1908 (Gier 9). One specimen.St. Nicolaas Bay, western end of Bali; September 7, 1909 (Gier 24,Exp. 6). One specimen.Sabang Bay, northern end of Sumatra; May 1908 (Gier 9). Two speci-mens.Notes. - The specimen from Great Kei has 11 arms which are about110 mm. long.The example from northwest of Rembang ha; 21 arms. The cirri have27 - 29 segments and are 23 mm. long.Of the two specimens from north of central Java one is rather largewith 30 arms and the other is a small lO-armed example.The specimen from Nassi Besar is typical., The example from St. Nicolaas Bay has only 10 arms.Of the two specimens from Sabang Bay one has 20 arms, with ten IIBr. 4 (3 + 4) series, and the other has 17 arms, with seven IIBr 4 (3 + 4) series.Subfamily Co m act i nil n a e.Comatula micraster A. H. CLARK.Locality. - Off Cape Jabung, northern' coast of southern Sumatra(lat. 10 03' S., long. 104° 35' E.); July 3,1908 (Gier 9, Exp. 19). Onespecimen.Notes. - Three cirri 8 mm. long with 12 segments are attached to twoof the' sides of the pentagonal centrodorsal, of which the other three sidesare depressed to the level of the radial pentagon.Comatula pectinaia (LINNE).Localities. - Off Flat Hook, southern Borneo (lat. 3° 46' S., long.1110 50' E.); 15 - 18 meters (Gier 12, Exp. 6). Ons specimen.TREUBIA VOL. XIV, LIVR. 2.,..East road of Indramayu (115 miles east of Batavia), Java (Oier 16,Exp. 3). Four specimens.Off Cape Selatan, southern Borneo (lat. 4° 25' S., long. 114° 31' E.);October 4, 1908 (Oier 12, Exp. 3). Two specimens.North of western Java (lat. 5° 22' S., long. 107° 42' E.); 23 meters;November 15, 1907 (Oier 4, Exp. 2). Four specimens.North of western Java (lat. 5° 16' S., long. 106° 24' E.); June 6,1909(Oier). Two specimens.Off Cape Jabung, northern coast of southern Sumatra (lat. 1° 03'S., long. 104° 35' E.); July 3,1908 (Oier 9, Exp. 19). Three specimens.Notes. - The specimen from "off Flat Hook, Borneo, has 18 arms.There are sevenllBr series and one external IIlBr series present. All thedivision series are 2 (1 + 2). One post-radial series is undergoing adoles-cent autotomy, bearing on the first brachial two IIBr series, one of whichcarries a IIIBr series externally.The four specimens from Indramayu are 1ather large and slender.The two examples from off Cape Selatan, Borneo, are rather large, andare of the stout armed type.The four specimens from lat. 5° 22' S., long. 107° 42' E. are large andslender armed with 10, 11, 12 and 13 arms. In those with 11 and 13 armsthe cirri are entirely confined to the interradial angles of the centrodorsal,there being five pairs of cirri in the.• 13-armed specimen and one pair andfour single cirri in the 11-armed specimen. These two specimens shouldundoubtedly be referred to Comatula pectinata var. purpurea.The two examples from lat. 5° 16' S., long. 106° 24' E. are rather largeand are of the stout armed type.The three specimens from off Cape Jabung, Sumatra, are rather large.One has 11 and the other two have 10 arms.Subfamily Corn a s t e r i n a e.Comaster multibrachiata (P. H. CARPENTER).Locality. - South of the eastern end of Java (Iat. 8° 47' S., long. 114° 38'E.); 30-36 meters; November 10,1908 (Oier 13, Exp. 7). One specimen ..Comaster distiticta (P. H. CARPENTER).Locality. - St. Nicolaas Bay, on the western end of BaIi; Septem-ber 7, 1909 (Oier 24, Exp. 6). One specimen.Comanihina schlegelii (P. H. CARPENTER).Localities; South of the eastern end of Java (Iat. 8° 47' S., long.AUSTIN H. CLARK;Crinoids. 21f114° 38' E.); 30 - 36 meters; November 11, 1908 (Gier 13, Exp. 7). One :specimen.Nassi Besar; 15 meters; June 16, 1908 (Gier 9).Notes. - The specimen from south of the eastern end of Java is largeand typical.Comaniheria briareus (BELL).Locality. ~ Sabang Bay, northern end of Sumatra; May 1900 (Gier 9).One specimen.Comanthus (Cenolia) benneiii 0. MULLER).Locality. - Near Ajer Melit; P. Weh, May 9, 1908 (Gier 9).Notes. - This is a fine example of the species.Comanihus (Comanthus ) parvicirra (J. MULLER).Locality. - Sebesi Island; H. BOSCHMA,April 1921. One specimen.Superfamily Mariametrida.Family ZVGOMETRIDAE.Zygometra comata A. H. CLARK.Locality.- Java Sea, northnortheast of Indramayu Point, Java (Iat.4° 56' S., long. 108° 56' E.,); October 23, 1907 (Gier 3, Exp. 20). Onespecimen.Notes. - This example has 18 arms.Family HIMEROMETRIDAE.Himeromeira magnipinna A. H. CLARK.Locality, - Nassi Besar; 9 meters; otter trawl; June 4, 1908 (Gier 9).One specimen.Craspedometra acuticirra (P. H. CARPENTER).Localities. - Off Cape Jabung, northern coast of southern Su-matra (Iat. 1° 03' S., long. 104° 35' E.); July 3, 1908 (Gier 9, Exp. 19).Three specimens.rC* '212 TREUBIA VOL. XIV, LIVR. 2.Near Deli, northern Sumatra (lat. 3° 40' N., long. 99° 10' E.); 16 - 18meters; June 25, 1908 (Oier 9, Exp. 14). Forty-eight specimens;Malacca Strait, near the mouth of the Deli River, N.E. Sumatra (lat.3° 53' N., long. 98° 46' E.) 10 meters; June 22, 1908 (Oier 9, Exp. 12) .. Four specimens.Notes. - One of the specimens from off Cape Jabung has 28 arms andanother has 22 arms.Nine of the specimens from lat. 3° 40' N., long. 99° 10' E. have 22(one), 23 (two), 24 (three), 26 (one), 28 (one) and 29 (one) arms. In the'specimen with 28 arms the arms are about 140 mm. long.In one of the specimens from lat. 3°53' N., long. 98° 46' E. there are35 arms; all of the IIIBr series are 2.Heterometra crenulaia (P. H. CARPENTER).Localities. - Off southeastern Borneo (lat. 3° 12' S., long. 116° 38' E.);.14 - 19 meters (Oier 14, Exp. 4). One specimen.North of central Java (lat. 5° 41' S., long. 109° 21' E.); November 21,1907 (Oier 4, Exp. to).. Four specimens.North of western Java (lat. 5° 22' S., long. 107° 42' E.); 23 meters;November 15, 1907 (Oier 4, Exp. 2). Two specimens.Off Cape Jabung, northern coast of southern Sumatra (lat. 1°03' S., long. 104° 35' E.); July 3, 1968 (Oier 9; Exp. 19,) Two specimens.Notes. - The four specimens from north of central Java are all small.One of the specimens from north of western Java has 10 and the otherhas 11 arms. The lateral processes on the segments of the proximal pinnulesare strongly developed, but slender.One of the specimens from off Cape Jabung, Sumatra, has 22 arms. Of theten IIBr series nine are 4 (3 + 4)' and one is 2. There is one IIIBr 4 (3 + 4)series following a IIBr 2 series, and one IIIBr 2 series following a IIBr·4 (3 + 4) series. Both of the IIIBr series are internally developed.Heteromeira quinduplicava (P. H. CARPENTER).Locality. - North of central Java (lat. 5° 41' S., long. 109° 21' E);November 21, 1907 (Oier 4, Exp. 10). One specimen.Notes. - The specimen is small with 16 arms, and is undergoingadolescent autotomy.Heterometra pulchra A. H. CLARK.Locality. - Near Deli, northern Sumatra (lat. 3° 40' N., long. 99° 10'. E.); 16 - 18 meters; June 25, 1908 (Oier 9, Exp. 14). Two specimens.,.IAUSTIN H. CLARK;Crinoids. 213Amphimetra molleri (A. H. CLARK).Localities. - North of central Java (tat. 5° 41' S., long. 109° 21' E.);November 21, 1907 (Gier 4, Exp. 10). One specimen.Off Cape Jabung, northern coast of southern Sumatra (tat. 1° 03'S., long. 104° 35' E.); July 3, 1908 (Gier 9, Exp. 19.). Four specimens.Near Deli, northern Sumatra (tat. 3° 40' N., long. 99° 10' E.); 16 - 18- meters; June 25, 1908 (Gier 9, Exp. 14). Five specimens.Near Olehleh, at the northwestern end of Surnatra (Gier 9, Exp. 4).One specimen.Notes. - One of the specimens from off Cape Jabung has 11 arms, oneIIBr 2 series being present.One of the specimens from near DeIi has one IIBr 2 series and 11 arms.Family MARIAMETRIDAE.Dichrometra tenuicirra A. H. CLARK.Localities. - North of central Java (tat. 5° 41' S., long. 109° 21' E.);November 21, 1907 (Gier 4, Exp. 10). Five specimens.Java Sea, northnortheast of Indramayu Point, Java (Iat. 4° 55' S., long.108° 56' E.); October 23, 1907 (Gier 3, Exp. ~O). Two specimens.Notes. - The largest specimen from north of central Java has 26 arms.Family ·COLOBOMETRIDAE.Pontiometra andersoni (P. H. CARPENTER).Localities. - Northwest of Rembang, Java (lat. 5° 39' S., long. 111° 19'E.); October 19, 1908 (Gier 12, Exp. 14). Three specimens.Java Sea, northnortheast of Indramayu Point, Java (lat. 4° 55' S. long.108° 56' E.); October 23, 1907 (Gier 3, Exp. 20). One specimen.Superfamily Tropiometrida.Family THALASSOMETRIDAE.Subfamily P t i I 0 met r i n a e.Asterometra miriiica A. H. CLARK.Locality. - St. Nicolaas Bay, western end of Bali; September 7, 1909(Gier 24, Exp. 6). Four specimens.Notes. - One of the specimens has 11 arms 100 mm. long, one IIBr 2r(214 TREUBIA VOL. XIV, LJVi:~. 2.series being present; the longest cirri have 93 segments. Another specimenhas 10 arms 100 mm. long; the longest cirri have 95 segments. The twoother specimens are small; each has 10 arms.Pterometra pulcherrima (A. H. CLARK).Locality. - South of the eastern end of Java (lat. 8° 47' S., long. 114°38' E.); 30--36 meters; November to, 1908 (Gier 13, Exp. 7). One specimen.Notes. - This is a fine typical example of the species. There are 18arms 80 - 90 mm. long. The cirri are composed of 88 - 92 segments and are60 - 75 mm. long. On one of the Cirri the terminal claw has at the base onthe dorsal side a process exactly resembling an opposing spine that rises to aheight equal to about half the width of the base of the terminal claw.Family CHARITOMETRIDAE.Crossometra helius (A. H. CLARK).Locality. -Bali Sea (lat. 7° 35' S., long. 114° 42' E.); about 200 meters;Dr. Th. MORTENSFN'S South Africa - Java Expedition, 1929-'30; April 10,1929. One specimen.Notes. - This specimen has 26~arms about 150 mm. long. The cirriare 30 - 38 mm. long and are composed of 20 - 22 segments.

THE CRINOIDS OF THE BUlTENZORG MUSEUM.

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THE CRINOIDS OF THE BUlTENZORG MUSEUM.

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