\r珍珠牡\pj480.bmp\r
\r石决明\pj480a.bmp\r
气寒。无毒。老蚌生者，（蚌即珠母，惟老者生多，小者少有。）出廉州海岛大池；（
属广东，海中有州岛，岛上有池谓之珠池。人疑其底与海通，池水乃淡，此不可测也。）刺
史掌之，督珠户岁采充贡。圆大寸围为上，光莹不暗极优。得此售人，价值难估。欲穿孔眼
，非金刚钻不能；求入医方，惟新完者可用。瓷钵极研，薄绢重筛。为丸镇心神，敷面润
颜
色。作散点目去膜，绵裹宜耳除聋。小儿惊热风痫，和药作锭摩服。尤堪止渴，亦能坠痰。
蚌肉味甘，作脯可食。功惟醒酒，去热驱烦。 又石决明，出南海内。单片不生
对合，光耀
无忝真珠。由此得名，眼科专用。或疑珠母，此大差违。气味寒咸，择七孔九孔方取；（又
名九孔螺，十孔以上者不佳。）面裹煨熟，将皮外粗黑尽摩。捣细末务如粉霜，开青盲兼除
翳障。（渍水洗眼亦妙。）肉采供馔，干可久留。远行馈人，并为真味。
\r蛤蜊\pj481.bmp\r
性冷。无毒。川泽俱生，似蚌略小。壳圆而薄，白腹紫唇。《月令》云∶雉入大水为
蜃，乃后车鳌；雀入大水为蛤，即此是也。肉煮食，润五脏止消渴，解酒毒开胃殊功；
壳研末，主老癖化顽痰，消血块去热立效。并与丹石相反，凡服丹石人误食，令腹结
痛，切宜戒
之。 车螯以蜃名，系蛤至大者。春夏吐气，俨若楼台。变态顷刻多端，土人称为海
市。有
肉可荐，有珠可穿。壳可嵌饰屏风，（凡器俱可嵌饰。）灰可堙圹墙壁。（亦可为粉饰面。）
用
壳入药，治疮疖肿毒弥佳；火 两遭，以醋淬捣末绝细。甘草对和酒送下咽，又以醋调敷于
毒处。 蚬（音显）小色黑，多在泥沙。每候风雨作时，以壳为翅飞起。肉取洗
净，糟煮服
良。解酒毒、湿毒、面黄，去热气、时气、目赤。开胃脘压丹石，下乳汁利小便。生浸取汁
盆盛，频洗疔疮尤效。消渴饮下，亦能解除。多食勿宜，发嗽消肾。烂壳烧白灰水饮，
主反
胃吐食，除塞膈积痰；陈壳杵细末汤吞，止邪梦失精，治阴疮下痢。
气味寒凉。无毒。由老蚌所生，（蚌就是珠母，只有年老的蚌产珠多，年幼的少。）出产于廉州海岛的大池中；（属于广东，海中有州岛，岛上有池称为珠池。人们怀疑池底与大海相通，但池水却是淡水，这不可推测。）由刺史掌管，督促采珠户每年采集进贡。直径一寸以上且圆润的为上品，光泽晶莹不昏暗的极佳。得到这种珍珠出售给人，价值难以估量。想要穿孔，非金刚钻不可；寻求用于医方，只有新近完整无损的才能使用。在瓷钵中极细研磨，用薄绢多次筛过。制成丸药可镇心安神，外敷面部可润泽容颜。制成散剂点眼可去除目翳，用绵布包裹塞耳宜于除聋。小儿惊风、热病、癫痫，配合药物制成锭剂摩服或内服。尤其能够止渴，也能坠痰降逆。蚌肉味甘，制成肉脯可以食用。功效仅在于醒酒，去除热气驱除烦闷。
另外石决明，出产于南海内部。单片生长而不成对合，光彩照耀无愧于真珠。因此得名，是眼科专用药。有人怀疑它是珠母，这就大错特错了。气味寒咸，选择七孔或九孔的才采取；（又名九孔螺，十孔以上的不好。）外面裹上泥土煨熟，将皮外粗黑部分全部磨去。捣成细末务必像粉霜一样，治疗青盲兼除翳障。（用水浸泡清洗眼睛也很好。）肉质采摘供饮食，干燥后可长久保存。远行馈赠他人，都算是珍味。
蛤蜊
性冷。无毒。川泽中都生长，形状像蚌略小。壳圆而薄，腹部白色嘴唇紫色。《月令》说：野鸡进入大水变成蜃，那是后来的车螯；麻雀进入大水变成蛤，就是这种蛤蜊。肉质煮熟食用，滋润五脏止消渴，解酒毒开胃有殊效；贝壳研成末，主治老癖积块化解顽痰，消除血块去除热气立见成效。并且与丹石类药物相反，凡是服用丹石的人误食，会导致腹部结聚疼痛，切切记戒。
车螯以蜃为名，是蛤蜊中最大的。春夏季节吐气，俨然如同楼台。变化顷刻间多种多样，当地人称为海市蜃楼。有肉可供荐献，有珠可以穿缀。壳可以镶嵌装饰屏风，（凡器物都可以镶嵌装饰。）灰可以堵塞墓穴墙壁。（也可以作为粉饰面部的材料。）用壳入药，治疗疮疖肿毒更佳；经过两次火煅，用醋淬炼后捣成极细末。甘草配合调和，酒送下咽，又以醋调敷于毒处。
蚬（音显）体小色黑，多在泥沙中。每当风雨大作时，以壳为翅飞起。肉质取来洗净，用糟煮服效果好。解酒毒、湿毒、面色萎黄，去除热气、时气、目赤肿痛。开胃脘压制丹石毒性，下乳汁利小便。生浸取汁盛于盆中，频繁洗涤疔疮尤为有效。消渴症饮用，也能解除。多食不宜，引发咳嗽消耗肾气。烂壳烧成白灰用水饮服，主治反胃吐食，去除膈膜积痰；陈旧的壳杵成细末汤吞，止邪梦失精，治疗阴疮下痢。
Pearl, Mother-of-pearl Shell (Bivalve that produces pearls)
Nature is cold. Non-toxic. Produced by old mussels, (The mussel is the mother-of-pearl shell; only older ones produce many pearls, while younger ones produce few.) Originates from large pools on islands in Lianzhou; (Belongs to Guangdong, where there are islands in the sea with pools called pearl pools. People suspect the bottom of the pool connects to the sea, yet the water is fresh, which is inexplicable.) Managed by the Prefect, who supervises pearl collectors to gather tribute annually. Those round and over one inch in circumference are superior; those bright and lustrous without dullness are excellent. Once obtained for sale, their value is incalculable. To drill holes, a diamond drill is required; for medical prescriptions, only newly intact ones are usable. Grind extremely finely in a porcelain mortar, and sieve repeatedly through thin silk. Made into pills to calm the Heart and Spirit (Shen), applied to the face to moisten and beautify the complexion. Made into powder for eye application to remove nebulae, wrapped in cotton for ear insertion to improve hearing. For pediatric convulsions, heat diseases, and epilepsy, combine with other medicines to form tablets for rubbing or ingestion. Particularly effective in quenching thirst and resolving phlegm accumulation. Mussel meat is sweet in taste, can be made into jerky for consumption. Its efficacy lies mainly in sobering up and clearing heat to dispel irritability.
Additionally, Concha Haliotidis (Abalone Shell) originates from the inner South Sea. It grows as single plates, not in pairs, shining brightly, worthy of comparison to true pearls. Hence its name, it is specifically used in ophthalmology. Some mistake it for the mother-of-pearl shell, which is a significant error. Its nature is cold and salty. Only those with seven or nine apertures should be harvested; (Also known as Nine-Hole Snail; those with ten or more apertures are inferior.) Wrap in dough and bake until cooked, then rub off all coarse black outer skin. Grind into fine powder resembling frost, to treat blindness (Qing Mang) and remove corneal opacities. (Soaking in water to wash eyes is also excellent.) The meat is harvested for culinary use, and when dried, can be stored for a long time. It serves as a delicacy for gifts during travel.
Clam
Nature is cold. Non-toxic. Grows in rivers and marshes, similar to mussels but slightly smaller. The shell is round and thin, with a white belly and purple lips. The *Yueling* states: "Pheasants entering large waters become clam-shells," referring later to the giant clam; "Sparrows entering large waters become clams," which refers to this specific clam. Cooked meat nourishes the Five Zang organs, quenches thirst, resolves alcohol toxicity, and benefits the stomach with remarkable effects; ground shell powder treats chronic accumulations, transforms stubborn phlegm, eliminates blood stasis, and clears heat with immediate effect. It is incompatible with cinnabar/mercury minerals (Dan Shi); anyone taking mineral drugs who mistakenly consumes it will suffer abdominal constriction and pain, so caution is strictly advised.
The Giant Clam (Che Ao) is named after the clam-shell spirit and is the largest of the clams. In spring and summer, it emits vapors resembling towers. Its transformations occur instantly in various forms, locally known as mirages. It has meat for food and pearls for stringing. Shells can be inlaid to decorate screens, (and any vessel can be inlaid.) Ash can be used to seal tombs and walls, (or as facial powder.) Using the shell in medicine is best for treating sores, boils, and swelling/toxins; calcined twice and quenched in vinegar, then ground into ultra-fine powder. Mix with Licorice Root (Gan Cao), take with wine, or apply with vinegar to the affected area.
Cockle (Xian) (Pronunciation: Xian) is small and black, often found in mud and sand. Whenever wind and rain arise, it flies using its shell as wings. The meat, washed clean, is beneficial when cooked with fermented grain residue. Resolves alcohol toxicity, dampness toxicity, sallow complexion, clears heat qi, seasonal pathogens, and red eyes. Benefits the stomach, suppresses mineral drug toxicity, promotes lactation, and promotes urination. Fresh juice extracted by soaking is kept in basins and frequently used to wash carbuncles, which is particularly effective. Drinking it helps resolve polydipsia. Excessive consumption is inadvisable as it induces coughing and depletes Kidney essence. Burning rotten shells into white ash and drinking the water treats regurgitation and vomiting, removing phlegm stagnation in the diaphragm; grinding old shells into fine powder and swallowing with decoction stops nocturnal emissions due to evil dreams and treats genital sores and dysentery.